Cool collars....If you don't mind spending a little bit of money(well worth it, as I will explain in a moment), google Kenyan Collars(You can find some here:
The Kenyan Collection - Beaded Leather Collars, Leashes, Browbands & Belts) These collars are very, very durable....I have had Largo in one for 18 months now, and it has gotten wet, etc....it is missing a couple of beads(dog chewing on it, not poor workmanship)...
I plan to soon, have all my dogs in one of these collars and have matching leads and a matching belt----obedience and rally competition.