My Grandpaw shot this huge deer in West Virginia and he didnt get it mounted and another thing is that he cut the antlers off at the skull separately. How would I attach the antlers to a normal manikin without making it look completely dumb?

There is a kit you can get from McKenzie's catalog... to little metal pieces that screw into the base of the horn. you then bondo that to the form and adjust to your liking.

These are sheds that I mounted for a friend.......