On the left we see part of an illustration CLAMP did for the short story on Mutuality (scanned by me, please credit!). On the right we see a chara design sheet for the anime.
If you pay attention to it you'll see that Sunrise ended using just the BASE of the original hat designed by CLAMP D:
I also think CLAMP's hat is a bit oversized ("looks like a parachute", according to a friend), but I also didn't like the final hat, it seemed too small and that something was missing. (It wasn't FABULOUS D:!!!)
ALSO, notice Lelouch's sword in CLAMP's illustration, it's MUCH better than the gay pink one he uses in the animation. It's white and MATCHES his outfit.
Now, changing the subject, I've watched Gran Torino finally and the movies IS GOOD. I usually like Clint Eastwood's movies, but this one really was something to me, specially because, while not so radical like in the movie we, Asians, do suffer prejudice here sometimes and the movie also shows that it's not a one sided idea, Asian people can also be pretty mean when they want to. I recommend that movie to everyone.