This magic trick can be done with any three bills of the same currency and value.

Effect: The magician clearly has three one dollar bills in his hand and magically, one disappears leaving the other two left untouched, right before the audiences baffled eyes!

Preparation: Secretly take out of your pocket/purse a dollar bill and fold it over about two thirds across, take the other bill and place it over the crease of the fold hiding the fold from view, the two bills should now look somewhat like three dollar bills.

Method: Take the already set dollar bills in your hand and announce that you are about to do what most people dread, make your money disappear.
Take the top of the two bottom edges of the dollar bill. When they are in between your thumb and pointer finger, shake the bill wildly so the top edge of the bill flops backward making the folded bill unfolded.

Then, take your bills and show that three one dollar bills have magically changed into two genuine dollar bills.