I tell a lot of people, to buy one of those dusters, that looks like a raccoon tail on a stick. Have it close to your mount(s), so when you are admiring it, you also dust it off. Once dust begins,it adds up in a hurry, cobwebs between tines,all of this makes the whole mount look faded and old. If you desire, you can put a little Windex on a Q-tip and clean the eyes.
Like what others have said, you should never have to spray, wipe or comb your mount.