Some would say the refrigerator is the most important appliance in the kitchen. While the primary role of the household refrigerator has always been, and continues to be, to keep food and drinks cold, innovations such as 3D printing are making it possible to transform the appliance that is at the center of the kitchen into a customized tool that better meets the needs of the homeowner. The desire to customize has inspired us to collaborate with FirstBuild to introduce the FirstBuild Thingiverse Icebox Challenge, aimed at designing solutions that can be placed inside of the refrigerator. Ideas could range from purely 3D printed pieces to battery-operated electromechanical devices. FirstBuild’s engineers have already gotten inspired about this Ice Box Challenge and have designed test prints that include a 3D printed pizza box holder, customizable to the size of the box and the shelves in the refrigerator, and a motorized 3D printed wine chiller. The possibilities are endless! We’re excited to see what innovative ideas you come up with. To qualify, designs must be uploaded to firstbuild.com between November 3 and November 23, 2014, at 11:59 p.m. EST. Entrants are also encouraged to upload their entries to thingiverse.com using the tag #IceBoxChallenge for a chance to be featured on the Thingiverse site. 3D print testing, online community voting and judging will occur from November 27 to December 2, with the winner announced December 15. Make sure to read all the Official Rules here. GO!