In a flash Lightning is produced by a buildup of excess electric charge, so you can make your own lightning by creating static electricity.
Lightning can flash within or between clouds, or between clouds and the ground.
Or you can create your own lightning by creating static electricity. Stand the paper clip upright on a table by inserting it into the Blu-Tak. Next, unroll a few centimeters of tape and hold it with the sticky side toward you. Then quickly pull the tape in jerks so that more is unrolled. You should again see small flashes of light.