Guy Dupont made Clock That Is Wrong, a digital clock that deliberately shows an incorrect time when its person sensor detects a face. The maker has shared the parts, wiring and CircuitPython code for the project.

Gopher, a smaller version of the Australian WomBot robot originally developed to explore wombat burrows, has been deployed in eastern Türkiye. It is helping investigate a geological formation that some people believe could be connected to the biblical Noah's Ark.

Designed by La Trobe University's Robert Ross, the remotely controlled robot carries waterproof wide-angle cameras at both ends and environmental sensors. It can collect information from inaccessible spaces as far as 25 meters below the surface. The site's proposed connection to Noah's Ark remains disputed; no ark has been confirmed.

FilaLoom adds a yarn-placement toolhead alongside a conventional plastic-extrusion head. It can place yarn at selected points during a print, producing mesh-like structures and three-dimensional textile-like shapes that combine thread and plastic.

Developed by Joram de Haas, the system lays down the thread automatically by switching toolheads rather than requiring someone to insert it by hand.

A glove-controlled tracked robot responds to a raised middle finger by raising its own mechanical finger. The maker says the build uses two Arduino Nano boards, a motion sensor in the glove, four drive motors and a servo for the finger.

The project was shared in a maker's Reddit post.

A hand-cranked pencil sharpener moves a blade back and forth along curved tracks while advancing and rotating the pencil in small steps. Chronova Engineering devised an intermittent gear mechanism to make the pencil turn while producing a concave tip.

The mechanism works, but sharpening is slow and labor-intensive rather than practical.

OATs is a small add-on device that gives everyday objects expressive characters based on sensor readings. On the researchers' project page, an office refrigerator gets bored when unused, while a space heater becomes frustrated when it heats an empty or overly warm room.

Users describe the object and select sensors such as temperature, motion and light to set up its character and behaviors. The project comes from researchers at Carnegie Mellon University.

bbScope adds a rotating side-view attachment to a digital microscope, allowing inspection of solder joints from all around without moving the object. Creator RealCorebb uses a mirror, prism and concave lens to redirect light into the microscope. Magnets hold the rotating attachment in place.

Greenhill Forge built a cooling system powered mainly by fire. Water in a low-pressure chamber boils at a low temperature and absorbs heat as it evaporates. Circulating salt water captures the vapor.

The setup still uses some electricity for pumps and fans. In an initial test with ambient air around 16°C, the cooled section reached roughly 5°C.

Knock on the Mini Monster Box and a little monster peeks out. The lid opens and closes at random speeds and stays open for varying lengths of time.

Electronics maker Øyvind Nydal Dahl built it for his young daughter. A microphone detects the knock, while an Arduino and servo motor move the lid.

Brick Trials built a LEGO Technic machine that uses one motor to rotate paper and swing a pen. Different gear speeds shift each stroke into a flower pattern without any programmed drawing path. The maker shared a build-and-demo video.

This homebuilt drone flies using a single propeller mounted above a finned body, rather than the multiple rotors commonly seen on small drones.

Its maker, jyjblrd, has published modified flight-controller and motor-controller firmware, along with 3D design files for the body and propeller parts, on GitHub.

This Fish Does Not Exist is a framed e-paper display that creates textbook-style pages about imaginary fish. Software generates each fish's appearance, while an on-device AI model invents its scientific description. Every few minutes a new specimen appears, drawn stroke by stroke, with its description revealed gradually.

Maker Jim Bruges built it around an Arduino UNO Q and a 7.5-inch e-paper panel. Gemma 3 1B runs locally, so after setup the device can keep producing its fictional field guide without cloud services.