Ultra Trophy 3000
Ultra Trophy 3000 is a very rare item that you can only earn if you have won "world of the day" event, crowned by Seth or Hamumu. It is a perma-item so it can never be destroyed. It automatically returns to backpack when destroyed, like locks.
A common misconception is the trophy title, many believe its called "Trophy of the Day" or "World of the Day Trophy" when it's official title in game is actually "Ultra Trophy 3000".
Only 6 people in the game have a trophy as of February 26, 2013. They are probably the rarest item in game, including the wands and diamond ring, as many people got access to those items in the beginning stages of Growtopia, who are now inactive and undocumented, whereas there are definitely only 7 trophies in existence, due to the fact that the developers personally deliver these to the winning participants and therefore keep record.
The game has been released for approximately 8 weeks (released 10th January 2013) making the average trophy rate less than 1 per week.
The likelihood of a trophy does not consist of voting, nor world population. It simply revolves around the developers seeing a world they think is cool enough to be awarded a trophy.
You can keep track of the world who have won this prestigious title in @seil's world "hallofworlds" which is linked from START.
