We don't have enough ants around here so I boil mine. Or to be more specific, I simmer them. Boiling for too long will damage the bone and cause the teeth to fall out. Get the water where it is just barely bubbling and you'll have a lot less risk of softening the bones too much or the teeth falling out. I use a turkey fryer burner with a shallow wide pan. I tend to avoid getting the antlers in the "soup" so I make a little cap out of tinfoil to catch some steam in the area between the antlers. The first time especially, take it out often and rinse, scrapeand pick. besides a small snap blade knife and a set of hemostats from my trout fishing gear, I also find dental tools (available at gun shows and flea markets) extemely usefull. It's a bit frustrating at first because the picking and scraping seems endless but the second one gets way easier once you learn how and where to scrape. The brain contains a lot of fats so some Dawn soap, borax or other is helpful in your "soup".

Once the skull is cleaned, I take bueaty shop peroxide and soak for about 24 hours. Be very careful not to get peroxide on the antlers at all. I use small strips of rags or paper towels over the portion of the skull that protrudes from the water. The peroxide wicks up into the rags and bleaches that part of the skull without getting any on the antlers.

Personally, I like the look of the bone's natural color when bleached mush better than white paint but that's just personal preference.

Here's one I did last year