One of Kenner's best new toy ideas is the F/X line of figures. Here is are Darth Vader and Obi-Wan in their famous duel. The lightsaber each figure is holding lights up when a button on the figure's back is pressed and stays lit for about 15 seconds. As you can see in the picture, Obi-wan has a green lightsaber, a rather annoying error on Kenner's part. The two figures are sold separately, but the bases that display the figures connect.