I have this
It's actually a golf ball display, and it works perfectly. Though, obviously, it's quite limited as far as storage goes.
I was literally just about to post "golf ball shelf," and then I scroll down to find you beat me to it!
Might have to flip the shelf upside down to keep the divots from interfering.
If you frequent thrift stores, keep your eyes out, there. I often find great tiny tchotchke shelving in thrift stores, especially (for some reason) golf ball racks.
Somebody on here has theirs in a jewelry display case from a store, and it's beautiful! Here's hoping they post.