About this 3D model

I was just checking in on George Hart's page to see if anything new was up and this gem was there. Astounding! On his webpage he links a detailed paper describing the mathematical theory of objects like this one, the Mathmatica code he used to create it, and of course, photographic evidence that he not only printed it, but successfully assembled it! http://www.georgehart.com/puzzles/SymmetricSticks/index.html