I think I'm onto something but don't hold me to it.
If you google search 5 in a "Diamond plate" circle one of the links is Diamond Plate Specialties. When you go to the online line store of Diamond Plate Specialties and click on Standard Products, then count to the fifth item that has the picture saying Diamond Plate Specialties, it is a vertical tissue box cover that is 5" x 5" x 6 1/4" tall with a hole at the top of it, and it is made entirely of diamond plate. So I'm thinking that this might be something but I'm not sure.
