I' m a taxidermist. I tell my clients to simply moisten a rag with any dusting cleaner, like pledge. Wipe off the dust by going with the grain of the hair from nose to shoulder. If you have a ton of dust built up, vaccuming is a good idea. If your mount looks ruffled like , simply comb it after. You can also work the hairs back into place with your fingers. I' ve never heard of using hair spray or motor oil on a mount. Although the hairspray sounds interesting. But not sure on how it' d be on the nose over time. Taxidermy supply companys do make mount cleaners which aren' t a bad idea. I guarentee my work, and do touchups for free on all my mounts. Hey its my work, and my reputation so I want them looking good forever. I use a product called Hair Schene I get from Research Mannikins Taxidermy supply. This can be used after dusting. It puts nice shine back to the coat, and helps keep it smelling good also. One other point I also make to my customers, don' t hang your mounts too close to a woodstove or heating register. They will get dried out, and crack if too close to heat.