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The projectsThis video has two quick, but amazing "magic tricks" you can put together in minutes. Michael McCatty inspired me to build the second one, The Snapper. He actually drew out this really cool design in SketchUp. Thanks Michael.
I ran across the Magic Propeller in a book on traditional toys. Its one of those tricks that will really bewilder people. Im not sure how it works. It must have something to do with creating a harmonic motion. However it works, its neat.