One game that is often played at Posada parties is piñata. A piñata is a decorated clay or papier-mâché jar filled with sweets and hung from the ceiling or tree branch. The piñata is often decorated something like a ball with seven peaks around it. The peaks or spikes represent the 'seven deadly sins'. piñata's can also be in the form of an animal or bird (such as a donkey). To play the game, children are blind-folded and take it in turns to hit the piñata with a stick until it splits open and the sweets pour out. Then the children rush to pick up as many sweets as they can!