clear lucite rings?

[rocketsareneat.livejournal.com]

so yesterday while at the mall i ran into the cutest little ring. it was one of those plastic chunky rings with black and white stripes. upon further examination i found that it was simply a clear ring with the stripes painted on the underside (not very well done, even). so i figured instead of spending 6 bucks on it, i could try to get some simple clear ones and paint them myself. question is, where's a good place to look for clear lucite rings? prefferebly cheap ones ^^
thanks in advance :)