Refrigerators are ubiquitous: probably one of the most useful and central appliances in daily household use. But could there be something more to them? MakerBot and FirstBuild have teamed up to challenge you to answer that question. The Icebox Challenge -- running through November 23 -- is open for submissions of designs that can be created on a fifth generation MakerBot Replicator 3D printer that would be functional inside a refrigerator. The first-place winning design will earn the prize of a choice between a MakerBot Replicator Desktop 3D Printer or a MakerBot Replicator 2X Experimental 3D Printer, with second- and third-place entries also bringing home prizes. For a chance at these, check out the details in the full article: http://3dprint.com/22943/makerbot-firstbuild-icebox