Those are Sewing with Bonnie's embroidery designs correct or something like that for her website? I have similar ones and bought the mylar to go with them but have been afraid to use them on a quilt due to how well they will wash up. Have you washed your quilt and if so how did it wear for the mylar? Love the fabrics your used on your quilts and love the window pane idea with the birds. Very clever.