Sometimes my 3 year old gets bored in the tub. But I found a fun idea at least for a day - a gallon zip lock freezer bag. He enjoyed filling up the bag scoop by scoop. It got so heavy which gave him a chance to show how strong he was and his big muscles. Then the bag got a small hole which added to the fun. Sometimes I look for anyway to keep him occupied for a couple more minutes and this worked!