Has anyone else ever cast an eye at the arc of the bottom of a #10 can and wondered if it could be made into a cantle? A paint can lid? I suspect an old engraved silver or pewter tray ( or a misengraved one from an awards shop) might yield something with which to start. I think a bandsaw would be a good tool, but you could do great piercing and filing with a Dremel. I'll just stand over here and watch.