I had those stainless steel ring molds custom made about 20 years ago, but I think you can buy them in cooking stores now. (cookandbemerry.com)
They have been told to have steel rings through their noses, ready for the uplifting ceremony. (religion.blogs.cnn.com)
Traditional steel rings had to be stamped out and recycled — this new innovation eliminates that need, easing manufacturing and enhancing sustainability. (dupont.com)