Hi Rosie,
I know this is late but I just happened to catch this thread. go to HGTV.com and put Simply Quilts in the search space and find Episode QLT1033.
There are instructions for a quilt as you go double wedding ring. The guest is Cheryl Phillips and she wrote a book called Rings That Bind and you may be able to purchase it on Amazon or e-bay etc. Her website is www.phillipsfiberart.com
Hope this helps