A group of teenagers from Texas called "The Speed Gamers" are attempting to complete the entire Final Fantasy series in only a week, while taking donations for ACT Today, an organization to help support families affected by Autism.
(From their front page)
TheSpeedGamers have been streaming video game marathons for over a year to raise money for various charities. In total they have raised over $32,000 dollars and played 11 marathons.
TheSpeedGamers are based in the Dallas-Fort Worth area of Texas, but have members from around the world.