A Classic in Magic; Billy McComb's McCombical Deck never fails to fool and entertain.
The performer predicts a card by removing it from a red deck and placing it in plain view of the audience. The spectator, seated behind the performer, now must select a card from an entirely different deck - hopefully matching the prediction card.
The audience can see that the 2nd deck where the spectator must select their card consists of duplicates of the prediction card which has been in full view. The spectator is asked to say 'STOP' as the magician moves the cards one at a time from the top to the bottom of the deck. On the word 'STOP' that card is given to the spectator.
The audience is laughing as they can see the prediction and that all the cards in the second deck were the same as the prediction. The spectator calls out the name of the card which they selected and the audience is shocked to hear that the selected card is NOT the same as the prediction!
The performer picks up the predicted card and places it beside the chosen card. The two cards are turned over they are EXACT duplicates! Hilarious card routine! A real crowd pleaser!