From the Guild Wars website:
|How would you like to make a little Guild Wars history? The Guild Wars Team would like to invite all Guild Wars fans to participate in our Build a Guild Emblem contest. You've played Guild Wars and you know how the emblems help to distinguish one guild from another. Well, now we want to invite all Guild Wars fans to design a new and attractive guild graphic and submit it to us for judging. The prize? Up to 10 of the best symbols will be placed permanently into the Guild Wars emblem catalogue and will appear in the release version of the game!|
All the complete information can be found by clicking here.