Just look around you, there are band names everywhere, but it has to come from your life or it won't mean anything it will just be some "badass" name someone you don't know ( and more importantly doesn't know you) gave you.
That being said...
"Harmonsterca" I just saw a harmonica so... probably a better song name but you get the point. Look around you, get together with your band and think about experiences you all share and pull something clever out of them. You know, be creative.