Cast Brass Belt Buckles - Empty for Setting

I made these buckles in copper and had them cast in brass when I was working in metal. They are flat with a 2mm rim that you can set things in. I was pasting wallpaper to the bottom and putting resin on top. You can paint or glue stuff in them or pour resin. They’re great for making gifts or a craft project. They’re still shiny from my polishing and relatively i scratched.