Oh, wow, Legobot Headquarters tells you how to make honest-to-goodness transforming robots out of Lego. Including (and this is the bloody good bit): Optimus Prime, who actually changes between a lorry and a 'bot. My favourite bit: "Also, I would have made his feet completely blue just like the original but I didn't have enough blue pieces". I bet the Decepticons nicked 'em.