Why fight over first place; let the others waste their time. We know what we've got!

If you're looking for a bit of fun with a bit of Magic thrown in for good measure, this is it.

A spectator is asked to select a card from among a deck of jumbo cards. He is to close his eyes and commit to memory the value and suit of this card.

"Open your eyes and insert your card well into the shuffled deck", requests the performer. The spectator is taken aback for now the performer is holding a poker sized deck of cards.
In any case, he does as he is requested and the performer begins mixing the cards, one jumbo card among a deck of fifty plus poker cards. This is quite hilarious on its own.

The performer now feels he is narrowing the gap. He removes a card from the deck and states, "This is your card, the Three of Diamonds". The spectator lets him know that he is wrong.
Again, the performer removes another card, being quite oblivious to the fact that the selected card is the jumbo card. "O.K. I think I have it, your card was the Nine of Clubs".... No again.

"O.K., O.K., I think I see where I have been going wrong." The performer now removes the single jumbo card from among the poker sized cards: "O.K. I can't be wrong this time, your card is the Five of Hearts! (the jumbo card has somehow changed)... Wrong again.

"Well, what was your card?"..."The Eight of Diamonds!, How could I have missed it, I picked the only wrong card out of 51 cards. Look, the entire deck is made up of the Eight of Diamonds!.... your card!" The performer spreads the cards and every card has changed into the selected card.

Comes complete with both decks, gimmick and full instructions.