Rice Krispies Pop Game

A promotional card game from Kellogg's. A set collecting game with everyone playing at once. You call out cards you have available to swap (but not the colour) and you try to do a deal with a player who is calling out a letter you need (but, of course, it might be the wrong colour but you don't know that until you add the card to your hand. When you have a set of three cards (that spell POP) you shout out "Pop!" and lay down the set face-up. The game stops whilst your set is checked as valid and then starts again. The winner is the first player to lay down all their cards in valid sets. Really, this is a simpler form of Pit.