Powder measures. Flint knapping tools. A cup or pencil holder from the base. Make a cribbage board. Back scratchers. Make a lamp, and use thin hide for a lampshade. Slice it up to make buttons or checker pieces. Pencil toppers. How about a kitchen rolling pin?
A walk around the house with your imagination open will have you seeking out more antlers.
Small powder horn, cap box, pot hooks for cooking, large caliber nozzle for bullet bags, tompions. Clothes pins, knife sheath. Awl handle and awl sheath. Sailor's Fid.