Although simple, this trick has a big history from Zippotricks.com. There was originally a contest created to determine who could come up with a trick that was a "1 move, 1 hand" trick. Original text from the contest: "100$ reward for the �impossible� trick! The search for the true one-hand, �one movement�-trick is on! Is it in fact possible, or just another urban myth? The search for the true one-hand, �one movement�-trick is on! Is it in fact possible, or just another urban myth? Most one-hand �one-movement�-tricks are in fact two movements performed at such a high speed so it seems like just one movement. Despite this, rumors has it that the real thing actually excists. If this is so, naturally we want to see it. That�s why we now offer a 100$ reward to the first one to produce such a trick and send it to us. Obviously, we need video proof. Any kind of cheating, such as drilling ventilation holes in the cap, are naturally not aloud." The contest was posted sometime in or around July 2001, and the trick was finally made in September of 2001. Congrats again to The Saint and Cha-Ching

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I like it. Is the way that you do it as you open the cap with your index finger you slide up you thumb hitting the spark in reverse