Apparently, Elon Musk doesn't even need to be involved in money-making ventures anymore; just using his name can bring in big bucks. Case-in-point: A handful of school assignments graded by Musk in 1995 has fetched $7,753 at a Pennsylvania auction. The assignments were completed by Brian Thomas, who was a student at the University of Pennsylvania when Musk served as a teacher's assistant at the Wharton School of Business. The papers were graded and initialed by Musk, who left only one comment on one of the assignments: The word "graphic" next to a paragraph in which Thomas used a curse word.