Franklin gave us (for the low price of 35,000 a year) new water bottles in an effort to become a more sustainable campus*. Also, they would make nice weapons. Creepers beware.
Every class has a different color... I love it for it's function but more because it is a symbol of our long-suffering, Lugano-loving, long-term community with a common history.
(*though, by my estimations we would all have to become vegans, wear fig leaves, and stop printing to compensate for the environmental impact of our transatlantic flights)