Been building, breaking, molding and making for years. Theater props, prosthetic appliances for stage, film and costumes is where a lot of it started. Armchair engineer (it's like an armchair quarterback, but with more tools and less beer, but not much).
Currently working on a fabricator suite of tools, making an entire shop by hand, because I can.
Favorite materials: JB Weld and (of course) Duct Tape.