Michael Cochrane of London, the UK, built a nebulophone, a cool synthesizer sold by Bleep Labs.
I got my Nebulophone (from the Maker Shed) soldered and working a couple of weeks back, and have since completed a housing for it… I added an amplifier circuit and speaker so I could hear the Nebulophone without headphones.
Next modifications include visible ports for the IR in and out. Port for the arduino programming. Perhaps a flexible LED… currently the LED is pretty static where it is. The stylus is pretty much useless in the current housing… so perhaps it could be brought to the fore in some future incarnation. I had hoped to use the keyboard from the ‘easy piano DS’ but I couldn’t figure out the circuitry – It requires more electronc skills than I have at the moment.