That was another thought I had, I do have some polyurethane on hand, not sure if it would potentially react in any way with the peroxide but that might be my best bet.
Caddisguy do you do anything to whiten them after or just leave them as is? The tannery offered to beetle and bleach it but the teeth would get bleached as well, was already half planning on doing it myself but they gave me some extra motivation with that plus the fact that they want the small 250 just to toss it in a tank of beetles and give it a peroxide bath...I'll put that towards gas money scouting for the fall