GE is trying to give 3D printing its very own day of celebration, and its brought together a small group of celebrities to create and give away designs to kick the day off. Al Roker, Red Sox pitcher Craig Breslow, and 4chan creator Chris Poole — widely known as moot — are among the names participating in the first 3D Printing Day, which is being put together in a collaboration between GE, Makerbot, Autodesk, and others in the industry. 3D-printing is real now, says Poole.