http://rimgo.catsarch.i2p/gallery/k7vQipy?tag=cool.popular.1.25
Or I may have gotten it from one of those book order catalogs in elementary school. It works quite simply, twist the rope, pull it taunt, and then it starts to unwind, let it rewind and repeat. It's will keep going as you keep up the rhythm. cool history science neat Comments (4) dreammer243 Taut* 2 years ago | 1 0 ahorseelbowdeepinme 2 years ago | 4 1 skipweasel They're good for teaching kids coordination - like swings and other stuff where you have to fit in with a natural rhythm. 2...