It was Valve boss Gabe Newell's birthday on November 3, and to mark the occasion, some kids from 4chan's /v/ (the board's video games group) went and paid him a visit in the flesh.
In addition to giving him a giant card (which they do every year), and getting the chance to wish him a happy birthday in person (not to mention pick up some swag), they also presented him with a gift. A box. Which Newell was charged $2.50 to open.
Inside? A hat.
I won't say this often, but well played, /v/, well played.
UPDATE - Now with video.