A lockbox opens when a magnet is moved across its surface in a programmed pattern, with no visible keyhole or keypad. An 8-by-8 array of 64 magnetic sensors tracks the motion; when the gesture matches the stored pattern, a servo releases the latch.

Creator Stephen Cass found that the sensor area was only about three centimeters square, making it difficult to trace the gesture reliably. He decorated the box with a Celtic knot pattern and used part of it as a disguised positioning guide.

Meshbot was built to carry a Meshtastic radio up a steel drainpipe on an apartment building. Nearby buildings made radio reception poor, and its creator couldn't access the roof to put an antenna higher up.

Robert Wallhead made a modular climbing robot using magnets and 3D-printable chassis parts. He describes the results as working reasonably well, while acknowledging it was hardly the most practical solution.