I saw someone do Choose Your Queen (
http://www.magictricks.com/choose-your-queen.html) without the use of a card wallet. They were simply holding 4 cards, asked someone which queen (suit and color) they wanted, and then spread the cards out to reveal that the card named by the spectator was face up. When it is turned over, it is found to have a different color and pattern back than the other cards. Finally the other three cards are turned over and found to be all blank. How is this done without a card wallet, which every magic store online is showing as included because it is needed for the Choose Your Queen trick? What do I buy to do this trick -- could I just buy the Choose Your Queen set linked above and not use the wallet somehow?
Thanks!