Damn it. I was hoping to see a genuine freak.
As for your arms... go heavy on upper body exercises. Push press isn't a bad idea, just make sure to take advantage of the negative by exerting full control there. Gives you the best of both worlds; power it up, take it slow on the way down. That should hit your shoulders and tris in an impressive manner.
For developing decent arm thickness, I've found that old-fashioned chin-ups do the trick. Palms facing you. Add weight either from a dipping belt or by clutching a dumbbell between your ankles. The dipping belt is preferred... that way when you start to wear down, you can just give a little jump to 'cheat' it, and then hang on as long as you can for that extra murderous burn.
Arms are like anything else: hit them hard to make them grow. (Taking it with a grain of salt: before I injured my shoulders, my arms weren't that far over 17". I'm sure the real big guns have better advice.)