Skull

These STL files were created from a SketchUp model on Google 3D warehouse:

http://sketchup.google.com/3dwarehouse/details?mid=63a428e39db417b9106b3048633eca78

From the description:

"Produced at the Center for Biomolecular Imaging at Wake Forest University Health Sciences. used a CT scan of the head and segmented the bone of the skull. acknowledgements to Drs. Stitzel and Link."