Well the truth is....that tshirt is stolen artwork from me. I made that poster and posted on this forum, my fb and my devaint art page. They took it changed the city, erased the logos from the bottom and erased batman's hand. I made the poster and posted back i Nov 2010. Im looking into if there is anything I can do about them using it since I didnt even know about it. I just saw it in jcpenny like everyone else and had to do a doubt take. AND every single website and person Ive seen talking about it keeps saying that it makes a giant bat symbol in the sky, its doesnt! I made it to have the shape of Batman's head. You can see the ears at the top, to the nose and a single bat to make his mouth. Go back in the fan art and you will find my poster. also some websites selling it has a pic of a tshirt with no changes and you can still see my siggy in the bottom left of the pic.
Here is my poster with te tshirt.