Lava lamps - plastic bottle + vegetable oil (half fill the bottle) + water (fill the rest of the bottle + 10 drops food coloring + alka-seltzer (broken into pieces, placed 1 at a time into the bottle) = lava bottle
Easy Kids Crafts- Balloon Bowl: Just add a few layers of confetti and glue. Let dry completely and pop the ballon to get a bowl shape. I don't know if I could do this with the kids I nanny - patience is hard for them - but cute idea nonetheless.
Indoor Activities for Kids: Homemade Lava Lamps. Vegetable oil, a about of the water bottle, then water. 10 drops of food coloring. Then take a alkaseltzer tab and break it into 4 pieces. Drop one in at a time and wait for each to dissove!