Solar System Project Ideas For Kids, http://hative.com/solar-system-project-ideas-for-kids/,
Use with Lesson Apologia Astronomy Making a solar system with styrofoam balls
Shop for Solar System Craft Kit at S&S Worldwide. Create your own solar system! Make the entire solar system with this educational and fun pack. Styrofoam® balls and rings are ready to paint and decorate, then assemble for your very own.