Caffeine Molecule Coffee Mug
One can never have enough coffee. Designed with the molecular formula of caffeine – C8H10N4O2, this geeky coffee mug is perfect for those addicted to coffee and science! Each atom is identifiable by its size, with the single and double covalent bonds represented by single or double lines. It can hold 7 ounces and is also available in espresso size (2 ounces) – $29.