Let's say you're a mathematics freak whose life revolves around numbers. The Digital Card Calculator Camera would definitely come in handy the next time you try to calculate the wind shear at a high place as you aim to let your subject's hair fly in just the right position. This solar-powered calculator won't leech off your camera's main battery, so no worries about running out of juice whenever you want to capture that precious Kodak moment. The camera itself is pretty entry-level stuff, featuring a meager 8k internal memory and has a maximum resolution of 1,280 x 960. Something to get for your kid, perhaps? The Digital Card Calculator camera retails for $69.99 a pop.