Get 40 percent peroxide. Also get some powdered whitener which is essentially powdered bleach. Both items can be found at beauty supply stores. Mix them in a non-metallic bowl to the consistecy of cool whip. Wear gloves and liberally coat the skull, avoiding any on the antlers. Seal the skull in a clear plastic bag. This seals in moisture. Set it in direct sunlight for a couple of days. Set it on a stark white surface. I use a sheet and set it up for a white backstop also. This step is VERY important. The surface MUST be white. Then rinse with mild vinegar water to neutralize. I've used this method numerous times, and it yeilds the best results I have seen. mtmuley