Instead of rubber ducks and the usual bath toys, let the children pay with a turkey baster, egg beater and measuring cups. Never leave children alone when they are playing in the water. Have a picnic in the basement. Plan a pretend picnic but make the food real. Let children spread peanut butter or slice bananas with a plastic knife.
Older children can plan the menu.
Pack everything in a picnic basket and journey to a far off place to eat. Journey back by playing follow the leader all over the house. Make play dough. Cook all ingredients over low heat, stirring constantly until dough pulls away from the sides of the pan and forms a lumpy mass. Remove from heat and knead the dough.