It's no rumor prosthetics have been changing lives but Open Bionics in Bristol, England is going one step further. Imagine a prosthetic able to detect muscle activity and respond realistically. That kind of technology is what this company has been working hard to develop and they're using 3D printing to do it. What's the best part? They're designing bionic arms especially for kids, modeled after movies such as "Star Wars," "Frozen" and "The Avengers."