I made a stool out of car parts... and a home made cushion. Dreya helped alot with the cushion.
All car parts are worn and useless for road use, but make a pretty good stool.
It's a mix of mustang, jeep, and mini-mopar parts, and it rotates smooth enough to turn your stomach. It's ~30" high, the cushion is 14", and the base is about 25.5" with the tire.
I'm still debating adding a foot rest. Pics after jump.