I know that this is not 100% light painting per se, but it has light wands and long exposures, so what’s the heck.
You know those guys that tell the plane where to go while they are on the ground? THey are called ramp agents and they tell the plane where to go by waiving a special wand which is very similar to the wand used in light paintings. And just like waiving your hands in the snow creates snow angels, the ramp agents directing the planes reveals their true secret identity as Ramp Angels. True fact!
H/T to Kris Klop for the photo.