Cowculus Mug

A cow, a milk carton, and cheese have wandered into calculus class. “Cowculus” belongs on a math teacher’s desk, particularly one whose students already know a pun is never far away. The dairy-heavy design is cheerfully corny, so the recipient’s tolerance for groaners matters more than their taste in minimalist drinkware.

The print appears on both sides, which means you don’t have to choose between seeing the artwork yourself and letting the person across your desk see it. That’s a useful detail for a mug with a pun worth sharing, even if the audience responds with an eye roll.

The ceramic body is available in 11 oz and 15 oz sizes, with white, black, or white/black handle options. It can handle dishwasher cleaning and microwave reheating, handy if a stack of grading interrupts the first attempt at drinking your coffee. A calculus student would get the reference, but a teacher who enjoys an affectionate classroom groan is the strongest match.