There are papers you quilt over and tear away made just for the double wedding ring. Also I am pretty sure there are specialty machine embroidery programs that will work as well. Also I have seen the pounce pad templets that could work as you go. Perhaps a shopping trip to the quilt store would help. I am pretty sure I also have seen whole section of a quilt book I have with just the double wedding ring patterns.
Ah, I googled it and here are some options on the google search.
https://www.google.com/search?source....0.37REzL1fFTw