I have never done it, but it is on my to do list. I seen a tutorial on jeans cut into circles, a square of material put into the center of the circle, 1/8 of an inch from outside of circle. Line up the sides of each square, and sew together on the outer edge of square. I seen it done from wrong side of the jeans material. But I guess it is up to the quilter.
http://www.equilters.com/library/jea...gallbaros.html
I found the tutorial. Hope this will work for you. Have fun and please post a pic.