I attended a really cool photo exhibition called Who Shot Rock and Roll a few weeks ago at the Worcester Art Museum, Massachusetts, where I saw this photo parody of Manet's Luncheon on the Grass. It is the cover of an album jacket by the pop-punk band Bow Wow Wow. The album is Go Wild in the Country and its cover generated nearly as much controversy as Manet's painting, some one hundred and twenty years later. Check out the link.
I believe that the images and writing posted here fall under the "fair use" section of the U.S. copyright law http://www.copyright.gov/title17/92chap1.html#107, as they are intended for educational purposes and are not in a medium that is of commercial nature.