If you've ever wanted to drink coffee with a shoot 'em up attitude, the Gun Mug is the only cup that will allow you to do so without bringing a piece to the table.
Having the Gun Mug around, you'll either initially scare the crap out of the person still trying to wake up or induce a bit of laughter into the morning routine. The conventional handle has been replaced with a handgun grip complete with the trigger. Of course, it doesn't fire anything, but I think the illusion of the firearm will make anyone feel a little bit badass.
If you've been wanting to inject a bit of fun and danger during coffee breaks, the Gun Mug can provide that entertainment.