It depends on your particular state if selling a bear or bear parts is illegal. Couple years ago I was selling a finished rug on a friends sale and was notified by the authorities that it is illegal to sell any parts of a black bear in my state... regardless if its a finished rug. He was also nice enough to tell me that I could drive 30 minutes across states lines and sell in that state without doing anything illegal. He also said the reason for the law was so that there wasn't a market for gall bladders, and that limiting the sale of a rug or skull wasn't the intent but the law was written as "bear parts". We don't even have bears in my state... Check you state laws.