When I'm bored, I trigger random E-mail alerts for old threads on HLP.

How many of you just got one?
Seriously though...I design and build model rockets too. It's fun, cheap, and other people think it's awesome. I launched one for a Physics project. Some of the school staff didn't know what was happening and they called the State Police. If you want a real time consuing challenge, design your own rocket. I'm working on one right now, the Javelin SSR. Depending on the math results, I might have to get FAA clearance so I don't accidentally shoot down a Cessna... If it works, I won't find it. If it fails, I won't find it. Four stages of D-Engines will do that...
Oh yeah, what happened in the second pic is referred to as a "Worm Guillotine." I'm not kidding, that's the technical term.