Find out about the contest here, but make sure to sign up for a DeviantART account to increase their market share and as a secondary consideration to participate. The best designs will have their accounts suspended and infringement notices sent to their home address, or e-mail box, whichever has not been falsified.
And YES, if you notice below the picture, this design is FREE for you to download and print yourself on t-shirts, Starbucks store windows, or airbrush on people's cars. If you try and resell it you're an idiot. It only has cultural value, like Buddhism, or Capitalism--not monetary value. Remember, fair trade is for people who don't have the balls to crack the whip.