Have you ever wanted to control your own luck? Now you can.
A folded card is held with a paperclip, on top of a random card. You explain that this is your lucky card. You have a card selected, signed and then lost in the deck. You then point to the folded card. You tip the lucky card into the spectator's hand for them to open. To their amazement, it is their signed card!
Custom made gimmick supplied.