4. Lay the square with the blanket stitch cross facing up. Take one the the 17″ x 11″ pieces and lay it face down on top of the square lining up the 17″ raw side with the edge of the square and with the finished edge towards the middle. Next, lay the second back piece face down with it’s raw edges lined up to the bottom square and the finished edge towards the center. The centers will overlap. Pin edges together and using a 1/2″ seam allowance sew all the way around the outer edge. I zig-zag stitched the raw edges to prevent fraying. Turn pillow right side out and stuff with a 16″ pillow form.