Place all the cards face up.
Version 1: Each player in turn, turns over looks for three rhyming cards. For example: cat, hat, and mat. The player names all three cards and keeps the set. It is the next player's turn.
Version 2: This is a race. The players, at the same time, look for three rhyming cards, name them and keep the set.  
The winner is the player with the most sets at the end of the game.