If you're looking for that very special gift for the Beer Loving Gun Nut in your life (or The Beer Nut who's addicted to the Military Channel, like me), this is your lucky day. The Battle Mug is made from a solid block of aluminum, features a handle from an AR-15 rifle, and has mounting rails for accessories like night-vision scopes (though, like bric-a-brac on doilies, why those would be necessary is up for debate).
Anyway, check it out here.
Personally, it doesn't appeal to me as much as a clear glass or mug, especially when served by a dirndl-clad madschen.
But whatever floats your Zodiac boat, Seals. And the Night-Vision attachment may help in finding your way to the loo in the dark.
Cheers! The PubScout