IBM 3D Prints World's Smallest Magazine Cover

IBM and National Geographic Kids unveiled the cover, which is small enough to fit on a single grain of salt 2,000 times, at the USA Science and Engineering Festival in Washington, D.C., where The Guinness Book of World Records officially proclaimed it as the world's smallest magazine cover.

http://mashable.com/2014/04/25/ibm-world-smallest-magazine-cover/