Fiber Optic Lighting Star Cloth is always used as a background of the stage in theatres, cinemas or disco. It also can be used in some specific occasions such as weddings and parties. A star cloth consists of a flame retardant velvet, optic fiber and a net to set the fiber. When you turn on the set-up light source, the fiber lights twinkle and change colors. The surface of the star cloth looks like lots of multicolored stars on the sky in the evening.