We've had a great time making colored rice flags and red, white and blue rice krispie treats this week in therapy. Colored rice is very simple to make and is great for use in sensory bins. We like to hide objects in our sensory bins, hide picture cards for speech therapy and practice scooping and pouring out the rice. Use an under the bed storage box and have your child take off his shoes and walk in the rice for an extra sensory input. There are a lot of tutorials on the web for making colored rice. We used this blog post from Powerful Mothering.