This is either one of the coolest DYI ever or one of the geekiest. Some guy has built a Tumbler go-kart from the new Batman movies. While the Tumbler go-kart is not for sale, what is are the plans for how to build one yourself. Before you rush in and purchase the plans on eBay to geek out and DYI… let it be know that his design does not include the option to reverse for whatever reason. So if you ever go-kart yourself into a corner, prepare to get out and push it out… which is not very cool. It’s just like breaking a wheel and Joker WILL get away.