I made a quilt(lap)from son's & husband's flannel shirts about 20 years ago. It was plaid bow ties with muslin background squares, and I used blue jeans for sashing strips. (couldn't afford to buy much fabric in those days) I think I used a 1/2" seam. I named it "Bow ties and Blue Jeans" DH still uses it as a window covering out in his shop!