It may sound more like science fiction than technological fact, but the truth is you can now print three-dimensional objects out of plastic, right in your own living room. Create your own Star Wars figurines, make a model car or even create a prototype to pitch for your million-dollar idea. You'll still need a few thousand dollars to get started, or the know-how to build one yourself from parts, but we're here to help you make sure those dollars are well spent on the product that's being hailed as the next big thing.