If you want to to get in on the Flappy Bird clone craze but lack the skills to build a proper game, try build-a-bird, a Tumblr-based web app that lets you choose a set of images with which to recreate the notoriously difficult game. Above, my Twitter avatar navigates a hideous landscape filled with Guy Fieris and an extraordinarily close-up tongue. Make your own here, via Waxy Links.