Airtight by Jay Sankey from Elmwood Magic

EFFECT: A selected and signed card is lost in the deck. A spectator chooses a balloon and the magician holds it in his open hand. The magician slams the deck against the balloon and the deck literally becomes sucked into the balloon! The balloon is blown up and the cards are shuffled around inside. The magician now pinches the selected card through the wall of the balloon and visibly pulls it through to the outside! The balloon with cards and the signed selection are immediately given out as souvenirs of this truly remarkable magic experience!

Performed by David Copperfield