Use a pair of pliers to untwist a wire hanger into a straight, workable shape.
Twist the wire hanger, starting at the top, into a circle small enough to grip onto the base of the light fixture. Turn the rest of the wire hanger into a larger circle to hold the fabric.
Cut out a square of fabric approximately 2 feet long and 10 inches wide. Fold the fabric over lengthwise by 1/2 inch and sew a channel down the fabric with a sewing machine. Use a straight stitch and a ¼-inch seam.
Slide the fabric channel onto the wire hanger’s large circle.
Unscrew the light fixture from the ceiling and slip the small circle over the base of the fixture. Place the light bulb back in the fixture.