Aether 1 bioprinter is one of the 3D Bio-Printers that is capable of printing two bones connected by a tendon using six materials that include synthetic bone, conductive ink, stem cells and graphene oxide. When usual bio-printers may cost upto 200,000$, the Aether 1 Bio-printer costs only 9000$ and they will be rolled out soon after some donations to researchers and universities.

Source: http://singularityhub.com/2016/07/08/watch-this-amazing-3d-bioprinter-make-bones-from-scratch/