Design student Evan Kuester is far from the first person to use the customizability options and relatively low cost of 3D printing to replace a body part. There are prosthetic jaws, prosthetic faces, prosthetic duck feet, and articulated prosthetic fingers. But just take a look at this delicate, beribboned one-piece printed arm, worn by fellow student Ivania Castillo. Kuester explained his process to Make, and a bulkier (and light-equipped!) early model can be found on his site. It's like if Charlize Theron's cyborg hand from Mad Max was made by the designers behind Dita Von Teese's 3D-printed dress.