What's folding money? It's paper money, but what's not folding money are coins. As you speak, you bring out your Folding Money; a few bills in a money clip. "Do you have any non-folding money, say a quarter I can borrow? And just to make sure I don't do a switch or anything, I'd like you to mark your coin with this pen, mark it in any way you wish, so that there is no question that this is your coin. There is no other coin just like this one anywhere in the world. One of the problems with many coins, when you want to use them in, say, a vending machine, is they don't work. You always wonder 'Why?' Well, the reason is they sometimes get bent and can't fit in the coin slot. Do you know how they get bent? I do, let me show you." You drop the marked coin into the folds of your Folding Money, as you say, "Your coins often get mixed in with your folding money, and if I give it a little squeeze, just watch, and it gets folded, too!" The coin is dropped in the spectator's hands and is clearly seen to be bent! The coin is really bent. It is their coin; there is no switch. Your spectators have just watched you bend their quarter with the power of the your mind! Joe Porper and Pete Biro have created a way to magically bend coins. The precision gimmick is right in front of the spectator's eyes...they just don't know it!