Good idea. For the moment I've just used a simple mandrel that I turned to the right diameter out of a length of mild steel rod, heating & quenching the brass first to soften it.
Of course, my way is a long-winded labour intensive way of doing it. I've no doubt a professional outfit could bang them out perfectly by the hundred. The problem is I'd have to order them by the hundred & I only need half a dozen, so this will have to do!
By the way, the Kelly Hoppen interior design books are buXXer all to do with me.......no doubt you can guess to whom they belong......![]()