Welcome from Nebraska! Eleanor Burns has a double wedding ring pattern in one of her books. The templates are included. This pattern is not difficult at all. You place four pieced quarter rings and the corner triangles on to the background block and then just connect the blocks together. When I made mine (in my signature picture) I used the pre printed fusibles that are available at quilt shops and just ironed them all onto the background block. With the fusible added to the thickness it was pretty hard to hand quilt through though. You could skip the fusible and then applique the pieces to the background blocks if you wanted to. It just wasn't nearly as complicated as it looks, there are no inset curved seams to it at all. Good Luck!
Rose