Purchase a magic coin from your local magic shop or online magic store. Make sure your starter magic set includes a magic coin to perform coin disappearing and bending tricks.
Test the magic coin's elasticity. If it is in working condition, the elastic bands should bend in two or three places with minimal effort.
Perform the trick. Show the coin to the audience and convince them the coin is real by either biting it or testing its durability in another way. Grab the coin between your index and middle fingers where only half the coin is protruding out of your hand. Take your thumb and index finger of your other hand and bend the coin up or down.