Wow!!! That is spectacular. My son and I do similar (less detailed stuff) with Johnny Lightnings. Is the set you used the one they gave you when you bought a new Road Runner or GTX in '69? I'd love to get a hold of one of them. My dad had one from his original '69 Road Runner. He gave it to my uncle who destroyed the set.

Now if you can mass produce them...and sell them at a reasonable price, I'd be first in line to buy one. Congratulations on an awesome, non-mainstream project. I'm sure you get hours of enjoyment from it. Tom