Bleep Labs, maker of the Thingamagoop musical robot is selling a kit to make your own light- and knob-controlled music synthesizer. Only $65 for the complete kit with metal enclosure.
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.