One of the coolest projects I've worked on was with the BBC, basically a competition attempting to find a new way to deliver news. Over 3 days we essentially brain stormed and scrum'd together a shoddy Web app using webRTC and 3 secret API's based on JSON and xml.
Fun project, performed badly but won. Moral of the story, if it looks nice, works as intended, no devs are reviewing it and you've crossed your fingers enough, you'll win ;)