This digital clock forms four digits using blue-dyed water in small bottles instead of LEDs. Each digit has a 3-by-5 grid of fifteen bottles, for sixty in total. An initial design with a shared pump and valves suffered from leaks and air in the lines. The final mechanism uses a tiny pump for each bottle, then tips the bottles to empty them when the display needs refreshing.

A maker tried to power a go-kart with a tiny one-dollar brushed DC motor. A 3D-printed gearbox with a 1,243:1 reduction gave it enough torque to move the kart, but only at a snail's pace. The experiment then scaled up to fourteen small motors. Losses in the gearing and chain still made a speedy ride unlikely.

FlyHead uses a computational model of fruit-fly neural circuitry to guide a wheeled robot. When a person approaches, it can react with fly-like evasive movements.

Shane Wighton of Stuff Made Here built an automated washing machine for his muddy dog. Shower nozzles move over a platform and spray from below. But his dog Eva was frightened by the machine, so another dog, Brie, took part in testing.

AWEBOT is a strange, creature-like mobile artwork roaming the streets of Philadelphia. Unlike the delivery robots it resembles, it carries no groceries, meals or packages. Its purpose is to surprise passersby and spark curiosity and connection.

The Philadelphia arts organization Ministry of Awe created it with artist Madison Polidoro. Rather than making deliveries more efficient, the moving sculpture turns unexpected encounters with people into its reason for existing.

The Skeuomorphicer Candle turns on when heated by a flame and turns off when you blow on it. A thermistor responds to the heat and switches the circuit on. Once lit, warmth from nearby resistors keeps it on; a puff of air cools the circuit and turns it off.

Maker Marek designed it without a microcontroller, using a single transistor, a thermistor and a handful of passive components. Keeping the thermal feedback reliable required careful tuning, and battery voltage can affect its behavior.

This camera only takes a photograph when there is a dog in the frame. The presence of a dog is built into the rules for whether the camera can take a picture at all.

It is a creation by Matty Benedetto, who shares deliberately unnecessary inventions on his own site, Unnecessary Inventions.

A homemade telephone lets you enter digits using a Morse key, displays the number on an LCD, and places a call when you press the MAIN button. For example, to call extension 31, you key in the Morse codes for 3 and 1. A push-to-talk speaker microphone gives conversations a radio-like feel.

Maker 7m4mon reused the enclosure, LCD and buttons from a test instrument built in 2008. An Arduino handles the input, while a Raspberry Pi provides the phone connection.

The Mini Sixteen-Wheeler is a homemade vehicle with 16 wheels arranged radially around a body resembling two overlapping octagons. Power reaches all 16 wheels, but on a flat floor it travels straight using only the four wheels touching the ground. When sent toward a wall, it spins in place. Attempts to negotiate slopes and steps did not go as planned.

Its creator, Zeru, developed the idea as a byproduct of working on a physics simulation model. The body was 3D-printed, then assembled with gears and wheels.

A homemade arcade cabinet starts a game when a rectangular concrete cartridge is inserted. The cartridge does not contain the game itself: an NFC sticker provides an ID that tells the cabinet which game to launch from its internal computer.

Maker Asger Kjærholm cast the concrete cartridges using 3D-printed molds. He also built a wooden cabinet with a cartridge slot and a drawer for storing the blocks.

The feature film Garagara, Akuta is in preparation. It follows a father who spent his time making impractical inventions and a daughter who left home partly because she disliked his projects. After her father develops young-onset dementia, she begins rebuilding one of his unfinished inventions with help from people around her. Filming is planned for December 2026, with completion expected in spring 2027. The production is raising funds through crowdfunding.

The film is written and directed by Asuka Hachimaru, with Shigehiro Yamaguchi playing the father. Daiju Ishikawa, founder and organizer of Hebocon, is involved in supervising the film's inventions and building large-scale props. Even the film's title lettering was created using cardboard and a toilet-paper tube.

A 12-foot (about 3.7-meter) Halloween skeleton has been transformed into an enormous Chia Pet, with chia seeds growing across its frame. It scales up the idea of a small novelty planter into a towering garden decoration.

Artist Ali Spagnola made the piece, dealing with structural challenges and adjusting growing conditions so the seeds could germinate across the skeleton. She finished it with decorative lights.