There is a DGM Big Bang challenge over at livejournal, found here:

[link]

Even if you don't have an LJ account, sign up if you love DGM and want to participate! (an LJ account is not a requirement to sign up!)

They're looking for both writers and artists so take a look around the community and sign up if it looks like fun! (and since when is the promise of more long fics and great art for the fandom NOT fun? 8D )

ETA: You will EVENTUALLY need an LJ account though because story rough drafts will be posted under member-locked entries for the artists to peruse for inspiration :3 But LJ accounts are free and it only takes a second to sign up! And when the challenge is over, you can freely abandon the account >_>;;; wooo~