There is a competition going for fans to create a new image for Green Day's official Facebook timeline and the prizes is pretty damn awesome:
Here's more about the contest
"With the release of their much-anticipated trilogy, Uno!, ¡Dos!, and ¡Tré, Green Day is inviting aspiring designers to submit their best graphic artwork as inspired by their music for the opportunity to have it featured as their Facebook timeline photo."
The contest page says that Green Day will be voting on the final entries. There's less than 48 hours left to enter the competition which ends November 6th, so go here for details. You must be 18+ to enter