A couple of things to keep in mind on denim quilts. 1. try to stay away from the knee area of the jean. This area is stretched. 2. I try not to use any denim from my stretch jeans cause of the stretch. A number of years ago I attended a class at LQS and we made a denim log cabin. One half was denim and the other side of cabin was cotton strips. It was a QAYG on flannel with ragged edges. I misplaces on of my colors so it was never finished, but not long ago I found the color I needed so now it is sitting in my to do pile.