I have a customer that wants the horns removed from the skull for craft use. They are bondo'd on, problem is the guy he bought them from wants the skull back. I think he made replicas to put back on it. How the heck am I gonna get them off, or is it not possible. I've been soaking in hot water for several days trying to get the horns to swell a bit and maybe pry them off, but no luck. Will simmering them for a few minutes help loosen them up any? Probably gonna regret doing this job. By the way, its a RM Bighhorn so trying not to destroy the skull if possible. Any help?