cheryl phyllips has a version of the small pieced arcs but even then, they are strip pieced and fast to do... a friend of mine is doing a denim version right now with t-shirt inserts (the roses are the inserts) and no 'ring' at all the red prints you see are really the back lining...you sew two circs together and the red (really a large seam) fold open to display both arc and red 'melon'.... her denim version is single layered, and the blue denim becomes the arc PLUS the melon, making it appear more like a cathedral window, much simpler but denim quilts often do not need batting and she just took advantage of it's weight and zigzagged the edges over her t-shirt insets...