Pinterest has some super posts for things to do with children. One recipe there is CLOUD DOUGH:
Mix one cup of baby oil with 8 cups of all-purpose flour.
The dough is very soft and delightful. Spread a plastic tablecloth on the floor, and place a dish-tub or a large plastic container (like the ones that you slide under the bed) in the middle of it. You’ll need some spoons, measuring cups, or small toys to add to the creative fun.
When it’s time for clean-up, gather the plastic tablecloth and take it out and shake it. Have fun! -Nealie