I'm not sure on previous threads but here is how I do it. To ensure uniform anlter mounts, you can order a foam form from a taxidermist supply company (van dykes, wasco, etc...) Then, get yourself some flocking and some paint on glue too. All togther, you can use the glue and the paint for many antler mounts. Also, you'll need some material that you can harden up around the horns to make a smooth surface after attaching and setting your skull plate and horns to the form. Those can be found in a catolog too.

You are gonna have to cut the skull plate just behind the base of the antlers and clean out the excess brain matter and stuff. After reasonably clean, you can boil it for about an hour and that will make cleaning the rest off easier. After that is complete, set the remaining skull plate and horns on the form. You can screw it in where you'd like to set it. Then use the material you've chosen to cover the plate and smooth it out around the form. Allow that to dry for whatever time it says on the package. Next, get your glue and flocking ready (there are a number of choices of color for the flocking). Evenly paint on the glue to the form. Spinkle the flocking over the glue on the form generously. Let dry for a few minutes and shake off the excess flocking. If there are areas of glue still left, repeat spinkling and shaking. When you are satisfied, let it dry for a few hours. Then, if you chose to use a plaque, you can fasten it to that and hang.

I realize this is a little in depth, but it will look great. Good luck.