From the halls of Blizzard:

J!NX presents the World of Warcraft T-Shirt Design Contest. We call upon you, the champions of Azeroth, to muster your artistic skills and design the next wave of tees in the J!NX World of Warcraft Collection. Will you declare your fealty to the Alliance or will your design scream "For the Horde!"? This is your chance to design the epic gear that all your guildmates will be wearing.

To submit your t-shirt design concept for judging by the World of Warcraft and J!NX creative teams, download the design kit, create your design using the template, and click SUBMIT to upload your work.

Submissions will be accepted until February 16, 11:59 PM PST, with voting commencing on February 21, running through March 7, 11:59 PM PST. Winners to be announced no later than March 11, 2011.

See the official page for information on rules and prizes.