"I Shot Mao Zedong."

I just read that an Andy Warhol screen print of Mao Zedong, which had been owned by Dennis Hopper, recently sold for $302,500.
The screen print had 2 bullet holes, courtesy of a startled Mr. Hopper. He showed the aerated portrait to Andy. Andy circled the bullet holes, labeled them and told Dennis that he considered it a collaboration.
The work went for 10 times its highest auction estimate.
Andy would have been thrilled.