If you are a fan as well, then you should definitely know about the Canteen Shop. They provide a good range of products, and some very cool custom gear. One of the new products coming out in 2011 will hopefully be this new cover for the canteen cup.
You can see the prototype in this video along with some other gear.
I can’t wait until I can get one and test it out. I just hope that it is not too heavy.