A set of cards that enable you to perform some off-beat packet magic, with a pun on the Ace !
In one effect, the performer displays the Ace, King, Queen and Jack of clubs, placing them in a spectator’s pocket. Three of the cards are removed, leaving the Ace in the pocket. When the spectator himself removes the Ace, it proves to be an Ass!

There are a couple of other routines in the detailed instructions, which come with all the required cards. Simple, novel, close-up magic, at a very economical price.