This might be of interest to you 3D artists on a shoestring budget;
the product uses nothing more than a chessboard, pencil and digital camera to scan 3D objects. It works by analyzing the shadows cast at different positions to determine the object's structure.
if that triped u out try this
http://www.milkyparadise.com/Priscilla/crossed/04.jpg
ok go cross exed and then focus on the middle image that appears
ps sorry if this is against the rules it is the least reveling of all the photo's in the section :/
thats pretty cool, unfortunatly anything out of the cameras range (say indents behind something facing the camera) wont be added to your "3D scan." its still pretty amazing though