I don't do scrap quilts normally, though I have many, many in my stash. Most of the time I am too anxious to begin the next project and am tired of looking at the fabrics I have used in that quilt to turn around and make another. I am also too OCD to just throw random scraps together and usually sew from a pattern exclusively. After finishing my latest, seen here:
Tween quilt for our grand daughter I had 198 - 2 1/2" HSTs left from doing all the rather large flying geese. I knew if I didn't do something with them immediately, they would remain in a drawer, along with all the remaining scraps of background fabric etc. Out of my comfort zone, I started putting stars together, then pinwheels.
Here is the finished quilt, all scraps except for an additional yard of background that I had earmarked for a pillowcase.....and surprisingly I love it, scrappy and all. It will be backed in Minkee with a gray binding.

You can see the 5 different background fabrics pretty easily in this picture.
It finished at 53" x 61" and is ready to quilt.