One of the Turrets from Portal. Inspired by the mini-human-generator-characters: http://www.pixelpapercraft.com/print/minecraft-character-mini . I added three legs (can't stand, has to "sit"), made it thinner and added cannons (three on each side instead of two). Skin drawn by me. Mountain- and valleyfolds are the same colour. So you need some tries until everything is correct and you'll earn the cake.