Programmable Music Box
Most music boxes can only play one song, but why not make a music box that is fully programmable? The Muro Box can play any song by using computer-controlled wheels to pluck the metal forks. You can program it using a mobile app or a MIDI device. It has a 40-note chromatic scale, and more than 50,000 songs in a downloadable library.
It’s going for an eye watering $995 pledge on Kickstarter. I think it’s ridiculously steep for a few dozen stepper motors and an app, but they do offer a smaller $299 version.