A Christmas tree does not have to be a fir in a stand. All it really needs is a recognisable silhouette: wide at the bottom, narrow at the top, something bright at the peak. Once you see it that way, almost anything can become a tree, from library books and lab glassware to sandbags, saws, succulents and a double bass. This collection gathers 30 of the most inventive alternatives people have shared online, with a note on how each one was made and why it works.
Some of these are practical answers to real problems: no room, no budget, a cat that climbs everything, or a military posting thousands of miles from home. Others are workplace jokes, fan tributes or pure showing off. A few could be copied at home in an afternoon; others are best admired rather than recreated, especially anything involving heavy tools or laboratory materials. We have grouped them by idea rather than by size, and credited the original poster under each photo wherever the source is known. At the end you will find a short history of the decorated tree, which has been reinvented more often than you might think.
Trees from books, offices and laboratories
1. The library bookshelf tree
Library staff pulled every green-spined book they could find and arranged them on the central shelves so the spines form a stepped triangle, topped with a paper star and guarded by two red-hatted gnomes. It costs nothing, needs no floor space and returns to normal shelving in minutes. Colour-sorting by spine is a trick bookshops and libraries now use for seasonal displays all over the world.
Photo: Botatitsbest via Reddit
2. A chemistry lab's glassware tree
This lab built its tree from round-bottomed flasks, beakers and bulbs filled with brightly coloured liquids, clamped to a metal frame on a bench and finished with chocolate coins in the "snow". Laboratory glassware catches the light beautifully, which is why it works as decoration. It is also a reminder that this belongs in a supervised lab, not a living room.
Photo: EarthwormEd via Reddit
3. The Portal office tree
Fans of Valve's 2007 puzzle game Portal will recognise the joke immediately. A tree hangs upside down through a ring of blue light in the ceiling, and its bottom half seems to emerge from an orange ring on the floor, as if it had fallen through the game's linked portals. Two hoops of LED strip and a little cutting are all it takes to sell the illusion.
Photo: GOstrovskiy via Reddit
4. "404 Decorations Not Found"
At this tech company the tree went up completely bare, with a single sign announcing "404 Decorations Not Found!". The number is the web's standard HTTP error code for a page that does not exist, so every developer in the office would get the joke at a glance. It may be the lowest-effort tree in the collection, and one of the most quoted.
Photo: fmudhir via Reddit
5. A tree grown from bacteria
This tree was "painted" on a Petri dish of agar using living bacteria, which grow into coloured colonies after incubation: green branches, red baubles and a yellow star. Microbiologists call the craft agar art, and the American Society for Microbiology runs a popular annual contest for it. It takes skill, sterile technique and a proper lab, so it is strictly for professionals.
Photo: LadyMario via Reddit
6. Monitors showing a tree
An IT worker stacked six spare flat-screen monitors into a pyramid, each displaying a photo of a lit Christmas tree, with a gold star perched on top. Together the screens build a bigger tree out of smaller ones. It is a neat way to give old office hardware a final festive job before recycling.
Photo: thatpartyguy via Reddit
Trees built far from home
7. A tyre tree on deployment
Service members on a desert deployment stacked old vehicle tyres into a tapering tower, wrapped it in cord hung with spray cans for baubles, and set sandbags around the base. The poster did not name the location. Trees like this have a long history: troops far from home have improvised Christmas decorations from whatever they had since at least the First World War.
Photo: jerm1820 via Reddit
8. Sandbags outside a Quonset hut
According to the post that shared it, this tree was built by US Marines in Afghanistan from stacked green sandbags, decorated with tinsel, candy canes and stockings. A red Marine Corps flag is visible behind the curved metal hut. Sandbags are about as plentiful as anything on a forward base, which makes them a natural, if heavy, building material.
Photo: lady_run via Reddit
Living and edible trees
9. A living succulent tree
Dozens of rosette succulents, mostly echeverias in blue-green, lilac and grey, were packed onto a cone-shaped frame so the plants themselves become the "ornaments". Because succulents store water and root easily, a tree like this can be misted lightly and kept alive for weeks. Afterwards the cuttings can be replanted, so nothing goes to waste.
Photo: crazysucculentlady via Reddit
10. A supermarket vegetable tree
Produce staff built this display from heads of broccoli and cauliflower, with small red fruit, probably tomatoes, standing in for baubles. Green, white and red happen to be classic Christmas colours, so the effect is instantly festive. It is also an eye-catching way for a shop to remind customers that the vegetable aisle exists in December.
Photo: tabb_oule via Instagram
11. Gingerbread in binary
This family hung a spiral of home-made gingerbread pieces across a window, each marked with a 0 or a 1. Read in order, the digits spell "Christmas Tree" in binary computer code, eight digits for every letter. It combines a baking project with a little coding lesson, and the window shape does the work of the tree.
Photo: IBorealis via Reddit
12. Christmas, San Diego style
In a warm-climate front garden, a variegated agave becomes the tree: a bauble is pushed onto the sharp tip of each spiky leaf. It is a light-hearted take on a Southern California Christmas, where snow is rare and spiky plants are everywhere. As a bonus, covering those needle-sharp tips makes the plant safer to walk past.
Photo: life_coach_melisa via Instagram
Minimal and space-saving trees
13. The "levitating" bauble tree
Silver and white baubles hang on nearly invisible threads from a curtain rail, each length cut so that together they trace a cone in mid-air. With no trunk and no needles, the tree takes up no floor space and is easy to vacuum around. The same idea works with paper stars or lights for an even lighter look.
Photo: kristina.len via Instagram
14. Recycled plastic bottles
Rows of cut plastic drinking bottles were stacked into a ribbed cone, shown here twice: in daylight with a cool blue-green tint, and at night filled with warm fairy lights that glow through the plastic. Bottle trees have become a popular community and school project because they turn waste into something people stop to look at. They also make a point about how many single-use bottles one town can produce.
Photo: sustainablemindz via Instagram
15. The ladder tree
A tall wooden stepladder in a grey hallway is wrapped in warm white lights and hung with pale baubles, topped by a large metal star. This styling came from Swedish interior stylist Lo Bjurulf for a feature in Elle Decoration. A ladder already has the right triangular shape, and it can go back to its normal job in January.
Photo: Lo Bjurulf / Elle Decoration Sweden
16. A string of lights on the wall
The simplest tree in the collection: one strand of warm white fairy lights zigzagged up a wall in a shrinking pattern, with a small picture at the top in place of a star. A wooden stool below holds the plug and any presents. It is a favourite for renters and small flats, because removable hooks leave no marks.
Photo: noslowsongs via Reddit
17. The UFO tree
White rings of decreasing size are suspended one above another from a round ceiling recess, so the outline of a tree appears out of thin air, like a craft beaming something down. The clean, glowing geometry would suit a modern lobby or gallery as much as a home. It shows how far the idea of a "tree" can be stretched while staying recognisable.
Photo: honganle via Instagram
18. A spiral of wooden slats
Thin green-painted boards are stacked on a central pole and rotated a few degrees each, creating a twisting spiral that narrows to an illuminated star. Small handmade ornaments hang from the tips and wrapped presents sit at the base. Designs like this can be taken apart and stored flat, which makes them a popular woodworking project.
Photo: wayne.beckwith via Instagram
Trees for film, TV and game fans
19. A Nightmare Before Christmas tree
A white flocked tree is decorated with characters from Tim Burton's 1993 stop-motion film The Nightmare Before Christmas, including Jack Skellington, with a second black-and-white photo showing it lit in the dark. The film, directed by Henry Selick, straddles Halloween and Christmas, so its fans often decorate for both. White and black make a striking change from red and green.
Photo: SquibbVicious via Reddit
20. Stranger Things, right side up and upside down
This display, apparently at a public festival of trees, recreates the alphabet wall of fairy lights from the Netflix series Stranger Things. A normal tree sits on top, while underneath a dark, tangled version hangs upside down, a nod to the show's shadowy "Upside Down". It is a clever way to turn a plot device into a two-level tree.
Photo: vitey15 via Reddit
21. Darth Vader
A real tree becomes the Sith lord: a Darth Vader helmet at the top, a black cape wrapped around the sides, a chest control panel, red tinsel and a glowing red lightsaber. It is a good example of how a costume prop can turn an ordinary tree into a character. Expect to see visitors posing for duels in front of it.
Photo: splitheaddawg via Reddit
22. Kirby inhaling the tree
Kirby, Nintendo's round pink hero, is famous for sucking up enemies and copying their powers. Here a large painted cut-out of him, wearing a Santa hat, seems to be swallowing a small decorated tree on its side, with its star flying loose. It turns a lying-down tree, usually a disaster, into the whole point of the scene.
Photo: TheAdamKoehler via Reddit
Workshop and found-object trees
23. Two old hand saws
Two rusty hand saws are mounted blade to blade on a white board wall so the toothed edges form the tree's sides and the wooden handles become its base. A chain draped across serves as garland, and a metal star sits on top. The original poster of this one is not known, but it has been copied by makers and barn-style decorators many times.
24. The workshop gear tree
Someone in this shop welded together sprockets, gears and lengths of roller chain into a heavy metal tree on a round base, with a gear for the star. It sits on a workbench among tools and a welding torch, which suggests it was built on site. A tree like this lasts forever and needs no decorations at all.
Photo: RLTmavrick via Imgur
25. A double bass in garland
Instead of buying a tree, this musician and his wife wrap his upright bass, also called a double bass, in green garland, warm lights and a few baubles each year. The instrument is about the height of a small tree and has the right broad-bottomed outline. Garland should sit loosely, though: tape and heat are not friends of a varnished instrument.
Photo: DingoMontgomery via Reddit
Jokes, illusions and compromises
26. A framed tree at an art centre
An art centre hung an empty gilded frame on the wall, placed a small decorated tree inside it, and let long strands of green garland spill out below, as if the picture were melting onto the floor. It plays with the idea of art escaping its frame. It is a good example of how a venue can make a seasonal decoration reflect what it does all year.
Photo: strangeloop527 via Reddit
27. The sheriff's office tree
Deputies wrapped their tree in yellow "Sheriff's Line Do Not Cross" tape instead of tinsel, hung real-looking handcuffs as ornaments, added star badges and finished it with a brown cowboy hat. The result is festive, funny and unmistakably theirs. Many workplaces use the tree as a gentle bit of self-parody in this way.
Photo: catlvr34249 via Reddit
28. A tree through the roof
From the street, a lit tree appears to be growing straight up through this house, with its glowing top poking out of the roof above a lit tree in the window below. The illusion relies on lining up a separate treetop on the roof with the indoor tree when seen from the road. It is a brilliant use of perspective and a reliable way to make neighbours slow down.
Photo: Hello_Wisconsin via Reddit
29. When a couple cannot agree
One side of this real tree is covered in large, multicoloured old-fashioned bulbs; the other in small warm-white lights. According to the poster, he and his wife could not agree on a style, so each got half. It is a familiar December argument, solved with a very visible compromise.
Photo: TheArcticBear via Reddit
30. The cat-proof tree
Cat owners know that a real tree is basically a climbing frame with breakable fruit. This household gave up and decorated the cat tree instead, wrapping its posts and platforms in tinsel and green garland while a cat watches from one of the dens. It is the ultimate cat-safe option, as long as nobody eats the tinsel, which can be dangerous for cats if swallowed.
Photo: schatz.katz via Instagram
The Christmas tree has always been reinvented
Unusual trees are not a modern rebellion against tradition; they are the tradition. Decorated evergreens developed in Germany and the Baltic region in the early modern period. Guilds in Tallinn and Riga recorded trees in the 1400s and 1500s, and the earliest firmly dated image of one is a 1576 carving in Turckheim, Alsace. The custom reached the English-speaking world on a large scale after 1848, when The Illustrated London News printed a picture of Queen Victoria, Prince Albert and their children around a tree at Windsor Castle.
Artificial trees started early too. In 19th-century Germany people made trees from goose feathers dyed green, partly because of worries about cutting too many forest trees. The Addis Brush Company made a bristle tree in 1930, and shiny aluminium trees appeared in 1958. Today most artificial trees are made of PVC, which is hard to recycle, and one life-cycle study found that a plastic tree needs to be used for many years, around two decades by that estimate, to match the footprint of buying a real one each year. If you want a greener alternative, reuse is the key, which is exactly what most of the trees above do so well.
If one of these ideas tempts you, start with the silhouette and safety: keep anything heavy firmly anchored, use lights rated for the job, and keep small parts and tinsel away from young children and pets. Then borrow freely. For more festive fun involving pets, see Christmas Trees and Curious Pets: Funny Photos, Better Context.
Sources: photos credited above to their original posters on Reddit, Instagram and Imgur; ladder tree by Lo Bjurulf for Elle Decoration Sweden; history from Wikipedia: Christmas tree.
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