I saw something interesting on a recent Wheeler Dealers episode, a wheel 'trim ring' called AlloyGators. It appears to be a plastic protective bead that sits between the wheel and the tire on the outside, designed to take the brunt of any rub up against a curb instead of your alloy wheel. Available in a bunch of different colors.
Anyone here have any experience with these, good or bad? Looks like in the US market these are pretty new ... More common in the UK market where they originated.