You show a deck of cards to be ordinary. The spectator selects a card, which may be signed.
The card is put back, and the deck squared, then placed face down on the table.

Show a coin, then vanish it!
Ask the spectator to cut the deck. The previously vanished coin is sitting on the deck, exactly where they cut!

The coin is removed by the spectator, and they name the chosen card.
When they turn the card that was underneath the coin over, it is the selected card!
Bicycle