Memory quilt from jeans & shirts. Notice that the denim pieces do not tough each other, so there are no super-thick seams or seam junctions to deal with, and the shirts reduce the overall weight of the quilt.
Log Cabin Scrap Quilt by Melody Johnson. I love how the colours intensify in the middle. It's much more interesting than a traditionally constructed log cabin quilt with panels sewn together instead of strips.