There's something universally appealing about the concept of a 3D printer -- that concept being an automated system capable of turning computer code into real-world objects. I found myself forced to give a brief overview of the technology to AOL employees in our shared New York City office space after a particularly noisy initial run of MakerBot's Replicator. Reactions to such explanations tend to follow a fairly standard arc, beginning with wide-eyed wonder as one attempts to wrap their brain around the idea, followed almost immediately by a list of things they'd love to print out, given a chance. This is usual