Scratch build cup rocket using Monsters University Art cup. I lost the last one after I sent it away on an E9, but boy was that a great flight! I've rebuilt, but this one has hair added for extra fun! I've also built this one to be fairly water-resistant for something of an "SUV" rocket.
I now call this one "Mr. Wiggles" because it's a better descriptor and makes for a fun announcement! Cup wiggled it's way up and had a bounce recovery. Tons of fun, simple and dependable!