I cut the leg pieces in unform widths and as long as knee wear etc will allow. I sort them in to 6,9,10 inch widths and make a length strip by just overlapping them and zigzag or other decorative stitch. Add strips to each side as you do out. This method reduces the heaviness of joining the strips. Then put on batting if desired and backing, woven or flannel, and sew vertically down the strips and across if you wish. Our grand kids love them and constantly call dibs on the first one which is backed with red and white checked polyester-cotton fabric.