Tank Coffee Mugs
People have been toying with the idea of a tank since the 15th century, when Leonardo da Vinci drew a wheeled vehicle with cannons all around it. It took the invention of the internal combustion engine, however, for modern tanks to truly begin taking shape. The first prototype, built by the Brits in 1915, was nicknamed Little Willie. Kick off your commute with caffeine from a tank coffee mug, and prepare to battle the traffic.