They release special stuff like this with the release of ever Final Fantasy, because Japan eats extra novelty stuff like this up. They never make their way over here though. Hell I remember when FFX-2 first came out they released a controller for it that was really awesome looking. It was a controller, but it was in the design of one of Yuna's gunner guns with the FFX-2 logo on it, and it costed $125.00. They also released three special edition PS2s, one metallic purple pinkish for Yuna, one metallic blue for Rikku, and one Silver for Paine, and they all sparkeled and had the FFX-2 logo one them. Again, none of it ever makes it's way outside Japan.

But I'm pretty sure region encoding doesn't count for controllers.