[Valentin] is the MacGyver of model rocketry, building a small rocket out of ... Cat litter, matchsticks, and a ballpoint pen are the raw materials that he rounded up before setting to work ...

Long before model rockets became Randy Boadway’s business ... and through the Wright Stuff Rocketeers club. “We love building things, and we especially love flying things,” he said.

Building and flying model rockets is great fun. Eventually, though, the thrill of the fire and smoke subsides, and you want to know more about what it’s doing in the air. With a thirst for ...