Wooster Collective is Picasso: Drawing With Light from LIFE magazine:
"LIFE photographer Gjon Mili visited Picasso in 1949. Mili showed the artist some of his photographs of ice skaters with tiny lights affixed to their skates jumping in the dark—and Picasso's mind began to race. The series of photographs that follows—Picasso’s light drawings—were made with a small flashlight in a dark room; the images vanished almost as soon as they were created."
You can find some background links for light painting or light graffiti in the previous AEP post Light graffiti in AE.
Also fun is Star Wars Vs. Star Trek (includes Light Painting) via a Twittered blog, Design You Trust:
Other recent Star Wars vs. Star Trek action was posted earlier in Favorite Movie: Star Trek vs. Star Wars and in Star Trek vs. Star Wars! The Great Lightsaber - Phaser Battle.