Bubble painting is fun to do for little kids who are get excited about blowing bubbles through straws (like I did in kindergarten). To do this, you mix 3 tablespoons of water, 1 tablespoon of dish soap, and a few squirts of food coloring in a cup. Use a straw to blow bubbles until they are coming out the top. Then pull the straw out and gently place a piece of paper on top of the cup until the bubbles pop. If you want more organic forms, wait until you make enough bubbles to start coming down the side, and then move the paper without pressing it to the cup top. You can create some wonderful textures and overlapping colors with this process centered art project. Experiment and enjoy!