Two spectators sign cards. One is placed in your pocket. The other is dropped face-down on the floor and one spectator’s foot is placed on it. The cards miraculously change places. The two cards are placed in the deck, but one of them appears in your pocket. With a snap, it changes into the
other card. The two signed cards then appear inside a sealed envelope inside a zipper compartment in your wallet.
 
Props: You will need a deck of cards and a card to envelope wallet.