Paint that grows. Mix 1 cup flour, 3 tsp baking powder, 1 tsp salt, and enough water to make consistency of pancake batter. add food coloring, paint and then pop paper in microwave for seconds and watch the paint puff up and grow.
25+ Awesome Art Projects for Toddlers and Preschoolers
I made these calm down jars for my classroom Take a Break Kits last year! Original pin:LEGO Calm Down Jar - Lemon Lime Adventures. I used Voss water bottles (cylindrical and plastic! These jars were a huge hit across grade levels!