Your child will have hours of fun outdoors or in painting with these fun natural paints and natural cellulose sponges in fun shapes. Just add water to the sponges and watch them grow. Getting started: Mix paint with equal part water and powder in tray. Run water over compressed sponges (or dunk them in water). You are ready to create ingredients: Rice flour, clay, curcumin, beet, black carrot, baking soda.