3D Printing
3D printing is still in its infancy. Most of the ones I have seen have limited capabilities in producing items using different materials. There are cheap 3D printers that can make an object out of PVC plastic, the colors are limited to one color. 3D printers are not good for mass productions, but are great for rapid prototyping. It is premature to talk about extending DRM to 3D printers and there are laws against making pirated copies of things.