I just got this in my e-mail today.
Go here to enter the contest and get a free T-shirt, yep I said free - you only have to pay for shipping. You can also enter the contest without ordering a T-shirt.
If you are ordering a T-shirt don't hesitate, I would imagine that there will be many orders and a lot will be put on back order. I ordered mine already.
Take Care, and good luck with the contest.
Photo courtesy of bobbylabonte.com