Paint that grows. Mix 1 cup flour, 3 tsp baking powder, 1 tsp salt, and enough water to make consistency of pancake batter. Divide into 4 parts and put in snack size Ziploc baggies along with food coloring. Squish it around to mix up the colors. Rubber band like icing bag and snip tiny hole. Squeeze to paint and then pop paper in microwave for 30-45 seconds and watch the paint puff up and grow.
Cloud dough- flour and baby oil. - Oh my gosh, this was the best thing ever for Bridget! She has played with it almost every day since we made it. I definitely recommend doing it outside or in an easily cleanable space. I layed out a plain vinyl shower curtain on my kitchen floor and let her at it.