Now, to be clear. Fan art is legal to produce and sell as long as it is reasonably different from the source material. The wording is pretty vague and open to interpretation but, generally speaking, if it's your own art work then you're fine. Further, quotes can be placed on items and sold as much as you want. You can't copyright quotes. Since it's so vague, even copyright nazis like Disney send warnings before they send lawyers.
Well, now that we have that all set up. Let's get to the meat of the matter. EA, apparently, heard about Etsy. A site where art and crafts are sold. To celebrate the up coming Mass Effect 3 game, they went onto Etsy and did a search for Mass Effect. They then demanded Etsy take down every single item. It didn't matter the content, subject, legal or not, if it was a button that said "Mass Effect sux", if it had the tag Mass Effect it was demanded to be removed. Proving... yet again... if there's a chance to be douche bags, EA is there.
As Etsy becomes more popular, more companies are doing this. Just recently, CBS carpet bombed anything to do with The Office. A friend of ours found this out when their item, a button that said "That's what she said" was a fatality in said carpet bombing. Further, the Etsy lawyer was extremely rude to her when she attempted to dispute it. Even though it says IN the Etsy guidelines that quotes are legal.
Fox did the same last month for anything to do with Futurama.