A deck with a SECRET!
This one is really different!
Borrow a ring from your spectator.
Tell her that the ring will be safe, because you are going to keep it in your special deck.
Show the deck- when you remove the top few cards, she'll see that a hole has been cut into the rest of the deck, making a secret compartment.
Let her drop the ring into the secret compartment, and close the deck.
Instantly, the ring is no longer inside the deck- it's in YOUR POCKET or wherever you'd like to produce the ring from!
Excellent prop to secretly obtain a ring or other small borrowed object!
This effect even comes with a ring, in case you can't borrow a real ring.