Take an empty cardboard box and remove the top. Draw lines at about 1cm from the edges. Using a black marker cover the outer surface of box. Draw outline on a cardboard. Mark at about 1 inch from the line. Place the lampshade at an angle and mark on inside. Make 3 marks at 1cm each. Make 4 such pieces. Use a black marker to draw random lines. Apply glue, and stick it inside. Use glue gun to stick the bulb holder.