We recently got a scan of Calvin's head at the 3D Photo Booth in the MakerBot Retail Store on Mulberry Street in NYC. About 18 months ago we got a scan at the same location (see this JMU MakerLab post), and the technology at the 3D Photo Booth has changed significantly for the better. This scan is a full 360 degrees around, and even the curly mop of hair looks great:
Thingiverse link: http://www.thingiverse.com/thing:397337
Settings: Printed on a MakerBot Replicator 2 at .3mm/low with raft and supports.