Ringnature by Ed Ellis

Here's what happens:

A card is freely chosen and signed by the spectator. The card is then lost in the deck. A ring is borrowed from the spectator and threaded through a rubber band. The ring and band are wrapped twice around the deck. Then, with a wave of the hand, the ring and rubber band completely disappear. When we say completely, the deck can be spread and they are nowhere to be found. For the finale, with a riffle of the deck, a single card shoots out of the middle of the deck. Not only is it the signed card, but the ring and rubberband are wrapped securely around it. Everything is examinable.