ahh, the perfect place is Chantanee Thai Restaurant over in Bellevue. the drinks are authentic and they DO serve in a skull mug! unfortunately, there is no pufferfish..
but: in Tacoma, there IS a bar with pufferfish, and they serve (i've heard) good drinks! The Tacoma Cabana
i can't recommend Hula Hula ~ love the decor, not fond of the drinks. god, even the virgin drinks were bad.