Marble Roulette

Lose your marbles in a simple game of chance. For this tension building game, you’ll need:

At least a dozen marbles, all the same size.
Wet a piece of single-ply paper towel and gently squeeze it (do not wring).
Stretch it taut across the mouth of a plastic container and fasten it with a rubber band.
To play, kids take turns placing a marble on the towel: whoever adds the marble that breaks through the towel loses.