Bullet by Peter Nardi
After performing your favorite Ambitious Card routine, you state that it's possible to make the card rise through the rest of the deck even while it's turned face up. Furthermore, the card may be signed to prove that it's the very same card. A sticker is attached to the back of the selected card and the spectator signs her name on the sticker. The spectator's card is then inserted face-up into the middle of the deck. In the blink of an eye, her card appears face up on top of the deck! The card is turned over to display the signature on the back and is immediately handed out for examination!