Split image: Left side shows a water bottle with text "Diet: H2O, The Secret Technique for Losing Weight by Drinking Bottled Water." Right side shows a man on a toilet playing mini-golf on a green mat.

Some inventions have completely changed the way we live, but some ideas should have stayed on the drawing board. Looking back at some of these creations, it’s hard not to wonder how they made it past the planning stage. These attempts at problem-solving show just how unpredictable human creativity can be and how often it leads to results no one asked for.

As you explore these funny inventions, you can almost imagine the mix of confidence and excitement their creators must have felt. Some are funny, some are weirdly clever in their own way, and some are sure to leave you shaking your head. Together, they remind us that innovation is rarely perfect, and that the journey of trying new things can be just as entertaining as the successes that follow. Let’s dive into 20 funny inventions that had no business going to market.

1. The Licki Brush

One of the most silly inventions. A silicone tongue to groom your own cat.
kickstarters/VIA Reddit.com

This unusual pet grooming tool was shaped like a giant tongue and was meant to be held in the person’s mouth while they groomed their cat. The idea was to let humans mimic the way cats groom each other. It promised to create a bonding moment between people and pets, but most owners discovered the experience was far stranger than they expected.

2. The Baby Mop Onesie

A baby in a blue outfit with bright orange textured fringe crawls on a bed with light-coloured bedding and pillows in the background.
userdeleted/VIA Reddit.com

The Baby Mop was a soft infant outfit covered in mop-like tendrils along the arms and legs. Its makers believed crawling babies could clean floors while moving around the house. Many parents laughed at the idea long before trying it, and the product became far more popular online than in actual homes.

3. The Fish Training Kit

A fish training kit with a miniature green soccer field, small goal, colored rods, hoops, rings, discs, balls, and training accessories arranged on a white surface. Brand: R2 Solutions.
bettafish/VIA Reddit.com

This quirky set claimed it could teach small fish to perform tricks like swimming through hoops or nudging a little ball. The creators made detailed instructions that relied on repetition and food rewards. Aquatic pets were suddenly portrayed as little athletes, and shockingly, some customers insisted it actually worked.

4. The USB Pet Rock

Two-panel image: On the left, a person holds a rock with a USB cable plugged in; on the right, the rock is connected to a laptop, next to a box labeled "USB Pet Rock.
ofcoursethatsathing/VIA Reddit.com

This USB version of the classic pet rock came with a cable that plugged into any computer port. The rock performed absolutely no tasks once connected. Its entire charm came from its uselessness, so it quickly became a gag gift for anyone who enjoyed absurd humor.

5. Diet Water

A hand holds a plastic water bottle with water splashing out. The text reads: "Diet: H2O. The secret technique for losing weight by drinking bottled water." A badge says "Healthy & Fast Weight Loss.
userdeleted/VIA Reddit.com

Diet Water was sold as a slimmer alternative to regular water, even though the two were chemically identical. The packaging often used dramatic wording to suggest it supported weight loss. Nothing inside the bottle was special, and it eventually became a running joke among shoppers.

6. The Ostrich Pillow

A person sits on an airport bench, wearing a large, padded, grey sleep hood that covers their entire head except for their nose and mouth, blocking out light and sound.
userdeleted/VIA Reddit.com

This oversized padded pillow was designed to cover the entire head with a thick cocoon of fabric. Its creators imagined a world where anyone could take a nap wherever they stood or sat. It had openings for breathing and for resting hands inside. People brought it partly for the novelty and partly for the hilarious photo opportunities.

7. The Selfie Toaster

A white toaster sits on snow outdoors behind a product box that reads "burnt custom Selfie TOASTER" and shows a piece of toast with a bearded man's face toasted on it, along with an image of the man. Bare trees are in the background.
via amazon.com

This absurdly expensive toaster became known for placing a person’s face directly onto a slice of bread. A metal plate with a custom portrait was inserted inside the appliance, and when the bread was toasted, the image appeared in darkened lines. People purchased it for the novelty of eating breakfast portraits.

8. The Beer Beard

A product box labeled "Beer Beard Secret Beverage Dispenser" shows a man wearing a fake black beard and cap, with a hidden drink pouch. An inset illustrates how the pouch fits inside the beard.
userdeleted/VIA Reddit.com

The Beer Beard acted as a secret drink holder disguised as a thick false beard. Inside the fabric was a pouch that held a full beverage, with a small straw that extended through the artificial hair. It allowed people to sip quietly while looking like a complete legend.

9. Shoe Umbrellas

A person wearing black high heels stands on wet pavement, with small yellow umbrellas attached above each shoe to shield them from rain.
topfives/VIA YouTube.com

Show Umbrellas were small canopies that fastened over footwear to block rain. They were either for extreme sneaker heads or people looking to get a laugh out of their friends. The inventors truly believed people would appreciate dry shoes.

10. The Noodle Cooler Fan

A person holds chopsticks with a small electric fan attached, cooling hot noodles above a bowl of ramen.
ofcoursethatsathing/VIA Reddit.com

This miniature fan was attached to utensils or bowls to cool down hot noodles. It operated with a tiny motor and created a small breeze over the food. The creators clearly understood the struggle of impatient eaters, but people normally just bought it as a funny kitchen accessory.

11. The Banana Slicer

A peeled banana sits on a wooden cutting board, sliced evenly using a yellow banana-shaped slicer. The slices remain aligned within the slicer, and a plate with fruit is visible in the background.
via walmart.com

This curved slicer cut a banana into equal pieces with a single press. It matched the shape of the fruit so it could create even segments instantly, but the device solved a problem that no one really had. People realized that instead of spending $10, they could just cut the banana with a knife. As a result, it became famous for its over-the-top simplicity.

12. The Avocado Saver

A green, oval-shaped avocado storage container with a clear lid is shown above a halved avocado with the seed inside and two whole avocados beside it.
via Amazon.com

This avocado-shaped container was created to preserve leftover halves. The interior matched the curve of the fruit perfectly, but despite the perfect form, the avocado still browned quickly. People also realized you could get the same effect with a plastic sandwich bag, which led to the invention’s downfall.

13. The Toilet Golf Set

A man sitting on a toilet plays a mini golf game using a small green putting mat, club, two golf balls, and a plastic hole with a flag numbered “2.” The putting set is designed for use in the bathroom.
userdeleted/VIA Reddit.com

The toilet golf set is a miniature golf game that sits at the base of the toilet and encourages players to practice their short game during bathroom visits. The kit included a small club, a ball, and a green, and sessions often lasted longer than intended because the activity was oddly relaxing and surprisingly tough. It was often gifted as a gag gift for golfers.

14. The UroClub

A person wearing shorts, white socks, and golf shoes stands on a tan floor. Instead of a right leg, there is a prosthetic shaped like a golf club.
userdeleted/VIA Reddit.com

The UroClub is a gold-shaped container that functions as a discreet portable urinal during long rounds on the course. A privacy towel came with the set to shield the user, and the idea was meant to add convenience to dedicated golfers. Instead, it quickly became an amusing conversation topic.

15. The Fake Belly Fanny Pack

A fanny pack designed to look like a hairy belly with a belly button; it has a zipper on top and an adjustable black strap. A small black keychain is displayed in the corner.
via amazon.com

The fake belly fanny pack was a fanny pack molded to resemble a “realistic” human belly, complete with painted hair and a zipper. The zipper blended into the design so the pouch remained hidden. Wearers used it as a prank or to spark conversation, but it was an instant hit online.

16. The Wake and Bacon

A wooden alarm clock shaped like a pig dispenses a metal tray with cooked bacon, lit from inside. The display shows the time "8:12". The design includes pig ears, eyes, and a snout on the front.
bacon/VIA Reddit.com

This bacon-scented alarm clock emitted the smell of sizzling bacon to wake sleepers. Its creators thought the aroma would make mornings more appealing, but when people rushed to the kitchen for breakfast, they experienced the letdown of the century. It became a novelty for bacon enthusiasts rather than a practical tool.

17. Glow-in-the-dark Toilet Paper

A light green toilet paper roll is shown next to its black packaging box labeled "Glow in the Dark Toilet Roll" in bold white and neon green text.
ofcoursethatsathing/VIA Reddit.com

Rolls of toilet paper glowed in the night to prevent fumbling in the dark. The product promised convenience for nighttime bathroom visits, but the novelty outweighed practicality for most houses. Also, I’m not sure about you, but I don’t trust wiping with any material that glows in the dark.

18. The Self-Stirring Mug

A white and gray electric coffee mug with steam rising from hot coffee inside; lid placed beside the mug and a charging cable shown plugged into the mug’s base.
via amazon.com

The Self-Stirring Mug automatically mixed drinks at the push of a button. Creators marketed it as a high-tech way to avoid using a spoon. In reality, most people realized a simple spoon accomplished the same task without batteries and for a lot cheaper. The mug became more of a kitchen novelty than an actual tool.

19. The Spaghetti Fork Spinner

A red and blue motorized fork with a thick handle, designed for twirling spaghetti. An inset shows the fork rotating to wrap noodles around its prongs.
via amazon.com

A battery-powered fork spins itself so noodles would magically wrap around the tines. Inventors claimed it solved the eternal problem of twirling long spaghetti, but most users quickly realized a simple manual twist worked just fine.

20. The Finger Drums

A person's hands playing a miniature toy drum set with purple drums and a silver cymbal on a black base.
via amazon.com

This tiny drum set was played with the fingers and allowed users to “play music” with small hand movements. Creators claimed it could turn anyone into a percussion virtuoso anywhere. In practice, it mostly produced random and tiny banging noises, so people bought it for fun or as a joke desk toy.

Want to see more funny content?

Check out 18 Ridiculously Funny Shirts That Nail The Joke, or take a look at 20 Funny Signs That Clearly Gave Up on Being Polite. Finally, if you want to see funny Super Bowl halftime posts, check out 21 Funny Super Bowl and Halftime Posts and Reactions.

Meet the Writer

Patrick is a writer based in upstate New York, where he grew up and still calls home. Over the past year, he’s been diving deep into storytelling, especially tales rooted in history, the Wild West, lost treasures, and ancient artifacts. He’s also drawn to unsolved mysteries and whatever the internet can’t stop talking about.

Whether it’s a centuries-old legend or a bizarre internet rabbit hole, Patrick is always chasing the threads of a compelling story. When he’s not chasing stories, Pat’s probably hiking mountain trails with his dog, exploring new corners of the U.S., or doom-scrolling between hangouts with friends and family. He finds inspiration in nature, forgotten places, and random conversations—anything that sparks curiosity. Whether it’s city streets or backcountry paths, Patrick’s always on the lookout for the next great story.