A Replacement Wedding Ring

I got a message from a friend to say he had lost his wedding ring and could I make him another one.

I said 'yes, sure" thinking he had seen the bashed round things and wanted one of those. But no! He wanted a ring with ancient Celtic Ogham symbols on it. He said "you'll be great at it, just carve it with your Dremel". A Dremel is a miniature power tool with attachments for miniature jobs like little bits of sanding an