This is sound generator from a cheesy kid's toy. It sounds like junk, but runs on low-voltage, to it is a good candidate to connect to the generator in the next picture.
shaking flashlight used as a generator for simple low-voltage oscillator. Also, buttons with control knobs were added. Unfortunately, this synthesizer only had a small melodic range.
The buttons conform well to the hand.
Juliet demos how she holds it while playing.
