Thought of Card Signed, Numbered & Delivered - Greg Berman

Imagine approaching a spectator and telling her that her thought of card will be in your wallet. Imagine she is also able to mentally mark the card in a way that will prove it is her unique card. Imagine the spectator tells you a number representing the location of the mentally selected card in an imaginary deck (a kind of mental ACAAN effect). All this is performed mentally without using an actual deck of cards.

After she selects the card, you then simply hand your wallet to the spectator to open and find her exact card with the mark in the exact location mentally selected by the spectator. Further, the only piece of paper in the wallet reveals to the spectator the precise number she previously stated as the spot in the imaginary deck where the card was located. Everything can be examined and the effect involves no sleight of hand!