Adam Root’s “Exo-Prosthetic” is a 3D printed artificial leg made from laser-sintered titanium, which uses a 3D scan of the wearer’s truncated limb for fit, and a 3D scan of the intact limb for form.
Very cool. They claim it can be made cheaper and more robustly. The fit can be fine tuned exactly to the needs of the person.
Hope it turns out to be something more than just some pretty pictures.