Wing Tip of Air Jamaica A320 aircraft. This flight was enroute from KIN/MBJ to JFK.
Notice the Static wicks at on the end of the Tip.
Well u may ask what is a Static Wick?
A static wick is a piece of metal connected electrically to the frame of the aircraft, with one or two spikes or needles on the end. It is housed in a fiberglass rod to insulate it from the airplane. Because the spikes concentrate the electric charge around them, and they are connected to the airframe, they allow the airplane to dissipate any static electricity it may build up out into the air. Also - if lightning DOES strike the plane, the chances are that the electricity will go through the dissipator and not through the airplane.