Icarus Studios has just the thing, and it's called the Fallen Earth Holiday Apocalypse Challenge. Aside from managing to put the words holiday and apocalypse in the same sentence, the contest gives you a chance to win a custom PC, an iPhone 4, and various and sundry additional goodies.
Enter for your chance to win (and check out the phat lewt) via the official contest website, and make sure you log in to Fallen Earth as often as possible from today through January 7th. Each day you log in earns you an additional contest entry. Also be sure to use the email address associated with your Fallen Earth game account when entering the contest. Finally, if you're not currently subscribed, Icarus has temporarily extended the game's trial to 30 days, so what are you waiting for?