Look at this awesome Nalgene bottle that my coworker got me a few weeks ago. It is a special philosophy bottle. You can get your own from Powell’s (a huge bookstore in Oregon).
The philosophers listed are: Aristotle, Plato, Augustine, Descartes, Kant, Marx, Nietzsche, Foucault. We joked that I should etch Zizek on the very top — maybe I will someday.