That's a good discussion.
Just this morning, its not the actual performance but still it baffled me. Con Cam Coincidencia by Paul Wilson. I saw this at the dnd website, on demand...
Description:
A borrowed deck is shuffled thoroughly by three spectators.Then one card is selected by one spectator.Example the 3 of clubs. The card is returned in the deck and the deck is divided into four packets wherein each spectator and the magician has a packet. The spectator who selected a card throws one card on the table from the top of the deckface down, then the other two spectators and the magician throws one card face-down from their own packets. This cycle is repeated until the spectator who selected a card decides to stop. The magician asks the said spectator to turnover the card on top of the remainder of his packet, it is the three of clubs. The remaining two spectators and the magician turn theor top cards over only to find out that they also have a three. A four of a kind is produced in the most unbelievalbe manner.