3D printed prosthesis

http://www.businesswire.com/news/home/20170301005768/en/Ambionics-Achieves-Breakthrough-Development-Unique-Child-Prosthetic

3D printing is awesome.

Form a company, learn how to design and build things with 3D modeling software, research infant development, file a patent then make a prosthetic arm.  And still quicker than relying on traditional manufacturing (and the NHS)!