A 6502 rebuilt from 4,051 transistors you can see, a skeleton solar watch, marbles on piano strings, pinball clocks. The part doing the work is the part on display.
Jelle's Marble Runs builds a machine whose only job is noise
→ youtube.com
An Enigma you can type on, then follow the current through the rotors
→ enigma.design
A MOS 6502 rebuilt from 4,051 transistors you can see
→ epatel.github.io
Watch electrons and holes move through a transistor
→ brandonli.net
A hole cut in the dial so you can watch it drink the light
→ mondaine.com
Real score reels tell the time, and flipper buttons set it
→ ayscrimstudios.com
A walkable neon cyberpunk city where every texture is a character
→ github.com