Don't recall ever seeing one. I guess its a make your own project if ya want a scabbard on a bow.
I guess the smartest thing to do if your not planning on using it right away, is just take it off and hang it on the wall. Or if you have a museum type set up like Mark has, just keep them UP on a shelf out of the way.
Gregg,
Yep that works, till you run out of shelves. I need more shelves. LOL