It got thrown out as there was no room in the house or garage and the rain wouldn't have been kind to it outside, bit it was cheap enough to make. Dad would have gotten the cardboard from the place he worked (lots of big boxes), and he put training wheels on the tank to steady it, I think it was attached to the bike with wire ties, which he also would have gotten at work, we have lots of spray paint hanging around, so paint was no problem.