Invisible Deck
This deck is a trick deck wherein the backs of the cards used have a thick, non-slick surface. The cards are placed back to back in certain pairs. There a few rules in determining these pairs:
1) Each pair adds up to 13 (9 and 4; 6 and 7; queen and ace; king and king; etc.)
2) All the odds are on one side, all the evens on the other
3) Hearts and spades are on one side, diamonds and clovers are on the other (note: this could vary depending on the company that made the deck)
A joker is commonly used to cover up one end of the deck, seeing how both sides have face up cards. By putting the joker face down on one side, you can make the deck appear as if it were legit. Maneuver the joker by palming it and placing it when necessary.