BILL FLIP TRICK
THE EFFECT: You show a bill the right way up, fold it a few times in half then when you open it the bill is upside down! A great quick trick that will get your mates head scratching!
THE SECRET: Take an ordinary bill and straighten it out. Fold the bill down so that you see half of the back side. Fold half of the bill horizontally to the right. Pull the back of the bill to the left and bring the front up to the top.
Presto, you have made the bill flip, simply by folding it!