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Originally invented by Buckminster Fuller, who called it the Jitterbug. When I was a UC Santa Cruz student, a friend and I sold Polyflexes to toy stores all over the San Francisco and Monterey Bay areas. I no longer sell them, but make them as gifts for the sheer joy of making and playing with them. Learn how to make *your own* Polyflex at http://www.geometricvisions.com/polyflex