User-driven marketing often feels like an artful dodge around doing actual creative work, but sometimes it does achieve cool results. The latest example comes from Germany, where Razorfish has rolled out the Mein Burger campaign for McDonald's Germany, which employs crowdsourcing by getting customers to create burgers and put them up to an online vote. This is pretty standard let-consumers-do-the-lifting procedure, except the first burger to win, the Pretzelnator, sounds delicious. Yes, it has a stupid name. But a burger topped with ham and Italian cheese in a pretzel bun? Das schmeckt gut! Just don't let David Hasselhoff see it. Via Laughing Squid.