I call it "Invisible Deck". Basically, spectator mearly thinks of a card, and when you take the cards out of the box, they are all face up, except for one, their thought of card!!!
But the one I am really proud of doesn't have a name. 3 spectators each take a card out, and one by one returns their card somewhere in the middle of the deck, randomly, and with no movement , you spread the cards and they are all next to eachother. A feat of coincidence or telepathy.