The 3D model is made by KP-ShadowSquirrel (http://kp-shadowsquirrel.deviantart.com/)
Music is made by WoodenToaster (https://www.youtube.com/watch?v=PLjpTtxH4Jo)

More info about the print :
Material : white PLA (bioplastic)
Layer height : 0.1mm
Nozzle diameter : ~0.4mm
Print speed : 30mm/s - Support structure : 90mm/s

Softwares used :
Model editing and conversion to stl : blender
Slicing : skeinforge
Motion control : EMC2
All softwares are free and open-source.

The 3D printer is home-made, mostly with salvaged parts from old printers an scanners.
If you want to build a 3D printer or just interested by this awesome technology, check http://reprap.org, All I know about 3D printing I learned from this website.