Tom Hobson made these fun BeatSneaks shoes with tap sensors and MIDI. Along with controlling music, they could trigger video or almost any other circuit. He's posted a HOWTO on his Hogbog Eclectronics site. BeatSneak HOWTO
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.