I've made lots of flannel rag quilts..cut them into 9 inch blocks..used 3 layers of flannel and sewed the seams toward the outsides so they would be seen rather than hidden and seam allowance was at 1 inch. I clipped all the seams close to the seam allowance at 1/4 inch intervals...after its completed, throw it in the dryer and let it fluff...make sure to clean dryer vent out its a huge amount of fuzz but the cut seams will fluff up and you see all the colors used in each square...I also DID do an X or other decorative stitching to stabilize the fabrics in place and together