Really great activity to immediately get the kids invested. It's essentially making your own Nerf gun, so it's automatically going to win over most kids… and adults if we're being honest. I always enjoy activities that allow creativity and also has an element of play to it. The video had the kids trying to launch their projectiles into a bucket and I think that's a wonderful idea. Any kind of "hit the target" goal is a great motivation for kids to keep working until they consistently can do it. Thoroughly enjoyed this activity and recommend it highly.