Have you ever thought about buying an expensive robotic vacuum cleaner and turning it into a cheap and tacky-sounding monosynth?
Tod E. Kurt did – he’s created RoombaMidi, a Mac OS X application that creates turns the iRobot Roomba roboti vacuum into a MIDI instrument for use by any Mac OS X MIDI sequencer, like Ableton Live, Logic, and others. It can even be played directly from a MIDI keyboard.
It may not be a TB-303, but at least it can do your floors.
via Axehole: The Monophonic Robotic Vacuum Synthesizer.