Reader Vid is from Croatia ("the homeland of Niko Bellic from GTA IV," he says), and he sent us this t-shirt he found in his closet. He's had it for a few years, but just recently noticed the emblem sitting on the chest pocket -- if it makes you want to grab your sword and fight the Horde, you're right. It's a slimmed down version of the Human Kingdom of Lordaeron symbol (although most of Lordaeron is now held by the Forsaken, but no mind -- the blue and gold are a widespread symbol of the Alliance).
Of course, how that symbol ended up on a cruise t-shirt, Fordragon knows. If the Lordaeron insignia is a reference to any real symbol in real life, we couldn't find it. Vid says the patch wasn't added by him, and it's been on the shirt since he owned it. Interesting -- either someone at S&A is a Warcraft fan, or there's a real-world link here we're missing. That's a nice t-shirt you got there, cousin!