Unemployed Philosophers Guild
This black ceramic mug features some of history's most famous and important mathematical formulas, including Newton's second law, the Fourier transform, and the mother of all equations, Einstein's general theory of relativity. It’s a superb gift for any mathematician, physicist, or math teacher.
The Unemployed Philosophers Guild was founded in the late years of the 20th century when a dwindling academic market forced two brothers to apply their creativity to actually making things. Since then, the Guild has continued to make funny, smart products for funny, smart people.