All I needed to make this into a proper display was a few mirrors and epoxy. It really is as easy as mixing and applying the epoxy to the frame and setting the mirror onto the frame:
TIP: I use plastic lids for mixing my epoxy. Any excess will peel off the plastic once it's dry so I can re-use the lid over and over again (for crafting, I wouldn't use it to cover a container that has food in it).
Once your mirrors are dried into place, add your display pieces. I'm showing it with bird baths here but I think I might use it to display jewelry when summer is over.