Look Ma, I Made It Myself! 10 Amazing Things 3-D Printers Can Do Now: The breathless predictions about 3-D printers ? they'll revolutionize X, Y, and Z industries, they'll even mop your floors! ? can steal the spotlight from the everyday applications already in use. Analysts predict 3-D printing will become a $3.1 billion industry by 2016, driven by manufacturers of everything from shoes to sedans. Here are 10 ways 3-D printing is reshaping industrial design now.