Lickable lollipop computer controller

Thought RSI was bad? Imagine licking your way through an eight-hour stint at your desktop.

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The confused camera

When you take a picture, do you ever think ‘Why did I bother?’. This ‘camera’ throws away your photo and replaces it with one of the thousands of similar images online.

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Hamster-powered drawing machine

A machine that draws hamster selfies. Alternatively, a contraption that traps unwitting creatures in a cycle of behavior to power a machine beyond their comprehension.

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Robocod

Not really a robot or a cod, but it’s still a goldfish driving a vehicle by swimming around its tank.

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Ridiculous subscriber robot

Basically an exercise in self-torture. Every subscriber to the YouTube channel of Pi tinkerer Michael Reeves’ results in him being blasted by a siren louder than a jackhammer and spasms the lights in his office on and off.

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Laser dog minder

This greedy dog is no match for a laser-based motion sensor, which triggers a recording scolding the hound the moment it puts its paws on the countertop.

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Bark-activated door

Ever wished your dog could open doors? No. Well, someone created a bark-triggered door anyway.

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Whoo-Pi cushion

The Whoo-Pi cushion promises hilarity for fans of boisterous bottom burps and thunderous tush trumpets.

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Motion-tracking Nerf gun

Elon Musk warned us this would happen. An autonomous weapon that tracks movement and peppers intruders with round after round of high caliber, compacted foam.

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Bicycle-powered beer dispenser

A fitting reward for the effort, or a surefire way to undo your hard work?

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Wi-Fi cradle

Not a serious project in any way, but a demonstration of how not to rock your baby to sleep.

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Sock-removing robot

From the same creator, this joke robot removes rather more than clothing.

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Joke-telling Pi

Because nothing is funnier than staring at a screen, waiting for the punchline to a joke about C++.

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Coffee-replenishing system

A complex mesh of deep learning and other back-end systems work round the clock to make sure this guy never runs out of coffee.

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Tweeting catflap

Every time this pampered puss uses its cat flap, an image is Tweeted of its resolutely unimpressed face, alongside a computer-generated ode to the kitty.

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Haunted Halloween mirror

If the ravages of time aren’t terrifying enough, perhaps a looming specter will give you a jolt.

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Hamster party cam

A hamster in its wheel, listening to party music, with disco lights–all caught on camera. A livestream waiting to happen.

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Pi air-drum kit

Now you don’t even need a drum kit to set free your inner Phil Collins.

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Eye tracker

If surveillance capitalism isn’t creepy enough for you, why not build a floating eye that tracks your every movement?

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Jelly bean-pooping unicorn

Greek mythology’s got nothing on this lurid creation, which, as promised, spews jelly beans from its rear.

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Goodbye machine

Bid your friends adieu by blasting them with a verse of James Blunt’s Goodbye My Lover or Lily Allen’s less affectionate **** You, complete with fitting hand gestures.

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Toilet tracker

Say goodbye to unwelcome surprises in the bathroom, thanks to a Pi-powered system that uses radar to track what’s lurking in the bowl.

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Cursing Roomba

Another Michael Reeves creation, this modified Roomba fills your home with blood-curdling screams and the harshest profanities every time it bumps into something. 

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Pi voice changer

Complete your transformation into a denizen of the underworld with a suitably nightmarish rasp.

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Talk like a pirate translator

If pirates don’t make you want to walk the plank, why not try adding the flavor of the high seas to your text?

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Plynth

Music connoisseurs who favor ostentatious displays over convenience can play music by placing vinyl albums in front of a camera-equipped Raspberry Pi.

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Pi-powered pie chart

It doesn’t get much more Pi-themed than this, this Pi-powered scale tracks how much pie is left using a pie chart.

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Santa detector

This system tasks a deep-learning neural network with the very serious matter of detecting whether that guy with the long beard really can shake his belly like a bowl full of jelly.

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Robotic teapot

Who’d have thought a teapot could look so sinister? This robot fuses the short and stout receptacle to four distinctly insectoid legs, allowing it to stalk through your home.

Also see

• Raspberry Pi add-on lets you build your own AI assistant powered by Amazon, Google and Microsoft
• Raspberry Pi 4 Model B review: This board really can replace your PC

• Full Windows 10 on a Raspberry Pi thin client: Here’s how it compares with a desktop

• How to give your Raspberry Pi ‘state-of-the art computer vision’ using Intel’s Neural Compute Stick

• Raspberry Pi simulator lets you start tinkering without even owning a Pi
• How to install Raspberry Pi’s Raspbian OS on a PC
• Raspberry Pi robot controlled from your Android phone? It’s simpler than you think
• Buying a Raspberry Pi Zero suddenly got a lot easier
• Raspberry Pi rival delivers a 4K Android computer for just $25 
  
• Raspberry Pi: More must-read coverage (TechRepublic on Flipboard)