3D printing continues to generate a lot of buzz as people come up with more ways to use it to create everything from pens that let you draw in 3D, to 3D printed prosthetics, even 3D food (as if there's any other kind.). Today, let's get into the details on an application of you may not have heard about yet. Let's just say it's not only cool, it might take care of your Christmas shopping, too.