While 3-D Printing technology is still a young innovation, it is already being used to create a wide variety of products: action figures, musical instruments, fabrics, and even food! But for all of the fun and whimsical items that can be produced, the most exciting application of this radical invention is the printing of artificial limbs. Its low-cost structure makes it ideal for those that are unable to afford traditional prosthetics that can run tens of thousands of dollars.