You remove a hard plastic wallet from your pocket to show that it is empty. Closing the wallet, it is obvious to the spectator that the wallet is truly empty, as there are five holes going through said wallet, and if anything were in it, it would be visible. You shake the wallet, and suddenly and visibly, a card appears inside! You remove the card and show that it is solid with no holes.
Those of you that are thinkers can visualize that this would be a very strong finish to your favorite selected card to impossible location. Truly amazing magic that is perfect for strolling, close-up or just for fun!