3-D printers are creating ears, but replacement organs in future: Drs. Oz and RoizenA A

In this June 27 photo, a bionic ear rests in a petri dish, in Princeton, N.J. Scientists at Princeton University have created an ear with an off-the-shelf 3-D printer that can "hear" radio frequencies far beyond the range of normal human capability.

http://www.cleveland.com/healthfit/index.ssf/2013/07/3-d_printers_are_creating_ears.html