Leaving STX at night in a 727 a long time ago, climbing out with rainshowers around. We get a ding ding ding from the back. FA says what was that. We didn't see or hear anything. FA says lightning hit one wingtip, came in the window and went up and down the aisle and out the other wingtip. Nobody hurt. No sign of problems in the cockpit so we press on but I still remember opening the door to a dark cabin with the largest, white eyeballs all staring up front. Found both wingtip taillights melted on postflight.