I remember a similar discussion about spinning and knitting with dog hair. "What if the sweater got wet and I'd end up smelling like wet dog." To which my answer was: "Ever stood next to a wet sheep?" Believe me, sheep and goats smell a LOT worse than most dogs. Shedding means that dead hair is falling out of the skin. So in order to have a shedding dog wig, you would need to make it out of a piece of skin with hair attached to it. Some fur wigs for dolls are made that way, but I think most people would object to skinning dogs to make wigs. Cut dog hair would probably be as good as human hair for making wigs. You would need a longhaired breed, though, because you need quite a bit of length to attach the hair.
I have shelties, twice a year they blow their coat and I end up brushing about a whole dog out of them. I kind of want to try needle felting their undercoat sometime. Lord knows I have enough. Other dog breeds, Yorkies and Poodles included, have continuously growning hair like humans to the point that they have normal trims to keep it under control unless they are show dogs who need the long coat for showing. A Yorkie who has their hair grown out for showing is hilarious when they aren’t in the ring, all tied up to stay pretty and out of the way. I can’t see any reason dog hair would be any different from any other animal hair, other than texture. I don’t know about buying from somebody else, but it would be kind of funny to have a wig of some sort made from your own dog’s hair.
