Skull

Four cardboard coasters per player, three with flowers and one with a skull. That is the whole game, and it is brutal. You either place a card face down or call out a number of cards you think you can flip without hitting a skull. The choice boils down to whether you are brave enough to flip your own cards when you know you placed a trap. It is pure bluffing and staring down your friends until someone blinks. If your group doesn't like psychological mind games, this will fall completely flat.