The 100 cup challenge is a great indoor game that your Sunday School class will truly enjoy. You can form as many groups as you want and each group would need 100 cups. The game sounds easy but it will pose a real challenge to the kids.
They will need to stack the cups and create a building in one minute. The team who can created the tallest building in one minute, wins!
You can buy this cup from Target or from a store that sells the cheapest cups.
Check out more games at Busy Kids Happy Mom.