Use simple materials to build a mini air cannon that you can take home and then use it to launch pom-poms, hit targets, and more. All ages. Stop by the cafe for safe, hands-on activities that get your brain cooking! ECHO’s Education Team will lead demonstrations before turning the challenge over to you to learn, explore, and experiment. This experience is free and included with your timed ticket. This experience is free and included with your timed ticket.