Nintendo-style: GameBoy-inspired TravelBoy Backpack
Both front and back are padded to protect your daily essentials, while (adjustable) straps and a handle make it easy to carry. On a more practical note, there is plenty of space, with a main compartment, a padded area, top pouch, middle pouch, bottom pouch and a pen / stylus area.
Not that any of the above matters, you'll be buying this purely for the design. $39.99 gets you one at ThinkGeek, which ships worldwide.
Find out more at the ThinkGeek website