SC13 Aggregate.Org/UK 20th Year Refrigerator Magnet

In our Aggregate.Org / University of Kentucky research exhibit at the IEEE/ACM Supercomputing 2013 conference, we had a number of 3D-printed things in the exhibit or used as giveaways. This is the giveaway that we made to commemorate our 20th SC conference research exhibit (http://aggregate.org/WHITE/sc13year20.pdf) -- and remind people that our SC94 exhibit was primarily about showing people how we built the world's first Linux PC cluster supercomputer in Feb. 1994. It's just a refrigerator mag