The Houdini Deck by Vincenzo Di Fatta

The magician shows a deck of cards to the audience and asks a spectator to look at one.

The deck is then blocked securely with a big padlock, and given to the spectator to hold. To the audience's surprise, the thought of card disappears from the deck, and reappears in the magician's pocket.
A real Houdini escape.
Very easy to do, high impact.
Made with original Bicycle cards, poker size. The big padlock is provided.