Google "shadow box for turkey fans" and you will get some great ideas, or places you can buy them. The ones that are handmade with old barn wood looked awesome and I may have to do that some time. Maybe with my daughter's first.
I use a product called Groom Aid (for dogs). It has lanolin in it and it is excellent for keeping the dust off turkey fans and deer head mounts. Just a light spritz and gently brush. I sell the stuff, so I just take a can home and do it when I think about it, maybe twice a year.