I picked-up a resin starter kit, and have been playing around with casting some tire sets. The first try is a set of big and little tires from the Revell Rebel Racer kit. I need a couple of sets for a 1969 Trans-Am Mustang build, and instead of stealing the tires I just cast a set. Not bad. The second set I cast, is a set of NASCAR slicks that have been widened a bit ( 60/40 split ) because I've always thought that the kit tires looked not wide enough. These will work on kits from the late 80's to the early 2000's. The third set I did ( in gray primer ) are NASCAR tires done a bit wider then the first set ( 70/30 split ) incase I didn't like how the 1st set looked. I also copied a GT racing seat from the Rebel kit. I think all in all they turned out not to bad for a serious 1st try at casting.