2015 Earnings: $11 million
Who knew that Albert Einstein would be raking in endorsement and merchandising deals over 60 years after his death? In addition to posters, t-shirts and even dolls, the theoretical physicist has his own line of tablets. How very 21st century of him. Specially designed for students, the einstein tablet offers android technology with a built-in science lab, including sensors to monitor things like heart rate, humidity and temperature, and retails at over $350 apiece.