For starters, you will have to get some coffee cups for the trick. That’s all. This trick will need a lot of performance and creativity as well. Cut a really small hole in the Styrofoam on the side of the coffee cup. This hole should not be too small. It should be large enough to fit your right-hand thumb. Stick your thumb into the Styrofoam discretely. Next, gently lift both of your hands simultaneously before your audience while distracting them with magic sounds and finger waving in a levitating motion. Try to keep the cup in the middle of both of your hands for a better illusion. It will really look like the cup is floating.
The Effect: I cut a deck of cards a couple of times, and you glimpse flashes of several different cards. I turn the cards facedown and invite you to choose one, memorize it, and return it. Now I ask you to name your card. You say (for example), “The queen of hearts.” I take the deck in my mouth, bite down, and groan and wiggle to suggest that your card is going down my throat, through my intestines, into my bloodstream, and finally into my right foot. I lift that foot and invite you to pull off my shoe and look inside. You find the queen of hearts. You’re amazed. If you happen to pick up the deck later, you’ll find it’s missing the queen of hearts.
Some time ago, people wondered how David Copperfield managed to seemingly tear a folded dollar in half right in front of people, then unfold it to reveal that it had been completely undamaged. The secret here is making cunning use of a pencil: the latter has been cut in half diagonally and connected with strong magnets! This allows the banknote to be easily passed between the two magnetised halves and remain undamaged.
Make a quarter vanish into thin air. Place a quarter in the palm of your dominant hand and tell your audience that you're going to make it disappear. Make sure it's resting right in the center of your middle and ring fingers—this will allow you to secretly cup the edges using your index and pinky fingers. Quickly pass your dominant hand over your opposite hand as though you've transferred the quarter, then let your dominant hand, which is still palming the coin, fall to your side. Open your empty hand and savor the look on your audience's faces as they try to figure out where the quarter went!