I made a rag quilt using the bottom parts and sleeves of T-shirts. I have made 4 bed-size t-shirt quilts, and saved the parts that were not used to make the rag quilt. I cut rectangles and sewed those together to made a good size lap quilt. I'm sure the seams will not frag like flannel might, but it was heave and comfortable for sitting on the sofa in the evenings.