Me likey.I'm on the side of slogans are not magic words that win elections.
Still, I will point out that in the letter that Carol wrote a ways back, she talked a lot about Ron Paul delivers. He delivered milk. He delivered babies. He delivered for the people he represented. etc etc etc.
That said, with Cain's $9.99 pizza slogan ... "Ron Paul delivers" may open the door for more humor than serious discussion.
Some ideas:
Integrity
(This is a quality none of the other candidates have.)
Peace and Prosperity
The $1 Trillion Man
The $1 Trillion Doctor
Unfortunately to the brain dead in this country - yes he does.