This is my buddy Mattâ€™s Haloween creation:
My music synced pumpkin created on 10-23-09 at HackPittsburgh (www.hackpittsburgh.org). The animation was created using an Arduino microcontroller (www.arduino.cc), a candle led from a craft store led tea light. and a blinkm (http://thingm.com/products/blinkm). The music synchronization was done with custom software written in VB.Net.
Direct Link: http://www.youtube.com/watch?v=hZt1nLhL7Bs