I like the eBay vendor grosserkater. (At least I think that's the right spelling!)
I can't remember if they're based in Austria or Czechoslovakia, but it's one of the two. I haven't checked their store recently, but they used to have loads of amazing colour rhinestone chains but then suddenly cut back to mostly clear and AB. They DO have silver and gold rhinestone chains in any case, and also often have that fabulous plastic snag-free rhinestone chain too. Not sure what that would look like on a costume, but the snag-free settings sure sound like a good idea to me!
They also often have sew-on and hotfix rhinestones too, so well worth a look.
