In theory, cars are fairly simple. If they don't start, it's either the fuel system or the electrical system. Teach yourself about the path of each in your engine and tracing it is fairly straightforward. But at the beginning, mastering each new system seems like an unreachable shore. The car is effectively a black box.

Let's get on our knees and pray. I don't know to whom. Is there a patron saint of ballistics gel?

I'm a lifelong movie addict, and one of my favorite projects is making replica props and costumes. Nearly every one of these - from R2D2 to Hellboy's revolver - ends with the paint job. And it's not just cosmetic. The paint literally tells a story: what this thing is made of, where it's been, what it's been used for, and for how long.

Deadlines refine the mind. They remove variables like exotic materials and processes that take too long. The closer the deadline, the more likely you'll start thinking waaay outside the box.

The 'Mythbusters' crew, we monitor the Discovery boards, we look for the new ideas that are being forwarded on those boards, and we keep track of what's going on, we keep updated.

I had saved a few hundred photos of dodo skeletons into my 'Creative Projects' folder - it's a repository for my brain, everything that I could possibly be interested in. Any time I have an Internet connection, there's a sluice of stuff moving into there, everything from beautiful rings to cockpit photos.

I'm always going to be making costumes. It's one of the ways I relax my brain. In addition to the pleasure of having the piece, there is a deep and abiding pleasure for me assembling something in my head - learning to know something in its totality in my head, and then putting together all the constituent parts into a cohesive whole.