I think it's definitely possible to use a jelly roll for the" Double Wedding Ring." Eleanor Burns has a tutorial in her "Egg Money" video series showing how to do it with applique. I'm also reading that there are paper-piecing patterns for it as well. I guess you paper-piece the ring and then sew those rings onto the background fabric. I've never tried one but I imagine the hardest part is the curved seams. There are tutorials on curved piecing that would certainly help make the process easier. I hsven't checked but I wouldn't be surprised if there are acrylic templates for those curved squares to make cutting out the rings really easy.