A physical build recreates the post-capture motion of the ball from Pokémon Legends: Arceus, actually jumping and releasing smoke. The ball also includes automatic opening and closing.

Kiara's Workshop built the working replica of the game's older-style Poké Ball. Hackaday's article also includes the creator's build video.

A miniature version of a center-pivot irrigation system has been rebuilt to mow a lawn instead of watering crops. Multiple wheeled sections are flexibly linked together and coordinated from the outer section inward as the whole structure rotates around a central point.

The mower uses two motor-driven pivoting blades mounted on a carriage that travels back and forth along one of the linkages. The sections are controlled to stay aligned while the machine gradually cuts a circular area. It was built by rctestflight.

At Maker Faire Tokyo 2026, the Ultra-Compact Hovercraft Laboratory exhibited its 11th single-seat hovercraft, designed to hover and move using human power alone. Pedaling drives four reciprocating compressors that pump air beneath the craft, while the rear propeller is also powered by the rider.

According to the report, hovering only requires pedaling at about one revolution per second, but moving forward under propeller power takes an all-out effort. The group has experimented with many different hovercraft mechanisms over the years.

A playable electric guitar has been built without a conventional neck or body, using strings, frets, and tensioned aircraft cable. Instead of relying on the usual wooden structure to withstand string tension, the instrument supports its playing components on a tensioned cable system.

It was built by Burls Art, a YouTuber and guitar maker known for unusual instruments. The build video ends with the finished instrument actually being played.

The MetMo Cube is a desktop fidget toy precision-machined from solid stainless steel using wire EDM. Pressing it produces a smooth sinking motion that uses pneumatic resistance inside the mechanism.

The specialized machining is time-consuming enough that production is limited each month, with separate September and October 2026 shipping waves offered on the product page.

A robot with rows of suction cups arranged like tracks can stay attached while driving from walls onto ceilings. As it moves, cups at the front attach one after another while those at the rear peel away in sequence.

The passive cups maintain adhesion without a vacuum pump. The robot traveled on glass, wood, metal and painted surfaces, and the roughly 3.5 kg machine also climbed while towing a 7.94 kg payload. The work was carried out by University of Michigan researchers Andrew Nguyen, Mingyuan Li and Daniel Bruder.

Kazuya Shibata's Fully Automatic Disposable Chopstick Splitter 2 is designed to split disposable wooden chopsticks cleanly and evenly. It feeds the chopsticks in, centers and pulls the two halves apart, then uses a circular saw to cut the remaining joint and a belt sander to smooth the ends.

The machine includes suspension to accommodate thickness variations and a self-centering gripping mechanism. Shibata spent about a year developing it, while processing one pair of chopsticks takes roughly four minutes. A task normally finished by hand in a moment has grown into a complete miniature production line.

Strange Inventions Lab turned an iPhone 13 Pro case into a miniature marble machine. The case contains a track and an Archimedes-screw lift, so tilting the phone sends a ball through the course and raises it for another lap.

The creator describes it as an experimental design that needs a fairly specific angle and can occasionally jam. It uses 19 screws and 12 ball bearings to add a complete mechanical toy to an object normally designed to stay thin and unobtrusive.

kimu-ryo's “True Random Number Generator Using a Disc Tray v1” uses the opening and closing motion of a DVD drive tray to physically roll a die. Because the result comes from an actual physical event, it serves as a source of randomness rather than a software pseudo-random sequence.

The ProtoPedia page highlights the simplicity of controlling the tray, and a v2 is being developed to return the die automatically after each roll. A computer component has effectively been reassigned to the ancient computational technique of throwing dice.