I saw the Henry case in their catalog, however, I was thinking of something perhaps a little less expensive. Doesn't need to be a case, a wooden rack would do just as well. I have found some online but nothing that really looks too good.
I make my own. Rough cut cedar slab and deer antlers, a little poly/sealer, a couple of screws, all it takes. Maybe some rawhide or buckskin to wrap the horns where the gun would set. Very easy really.
Quite a few years ago I bought a set of decorative brass wall hooks to display a rifle on the wall. One would nest the stock behind the trigger guard, while the other nests the forearm. They were lined with a green strip of felt to protect the finish on the gun. I believe they were made by Hoppes back in the day and I don't know if they still sell them.