Air conditioner cover for my mom. 18" x 24". 2002. NFS ($150.00) This started out as a quilt for my sister, but when my mother asked for something to cover the air conditioning unit during the winter, I backed it with Ultrex (normally used for the outer layer of jackets) and made a case for elastic with the lavender bias tape. The hexagon edges are covered in lace, sewn down by machine and applied to a blue cotton fabric.