I am doing this as a quick quilt to practice FMQ. The blocks are 12 " square and are all different colors using whatever I had in my stash. I still have 15 more blocks to go. The quilt will be backed with flannel and is just meant to be a cuddle quilt that I practice on. Question is - because I will be quilting on different color backgrounds what color thead should I use and can anyone suggest how to quilt this. The quilt will be 68" X 80" so lots of room to practice. Thanks for any suggestions.