Another ball and an extra set of fingers?

3D printing of bones – or more accurately, bone-scaffolds, upon which real bone can grow… not quite lizard like limb replacement, but certainly a step in that direction.

“EXACT replicas of a man’s thumb bones have been made for the first time using a 3D printer. The breakthrough paves the way for surgeons to replace damaged or diseased bones with identical copies built from the patients’ own cells.

“In theory, you could do any bone,” says Christian Weinand of the Insel Hospital in Berne, Switzerland, head of the team that copied his thumb bones. “Now I can put spares in my pocket if I want,” he says.”

from New Scientist : via nextbigfuture.com