Homebrew, 3D printed Fisher-Price record-player disc plays "Still Alive"

Pittance sez, "This is my brand new 3D printed Fisher-Price record player record (for the old clockwork music box one, not the new electronic one) playing "Still Alive" from Portal. It's entirely made using Processing and printed at Shapeways and, now I know how to do it, I really hope I can make more with different tunes - suggestions?"

3D Printed Record - 'Still Alive'