Clayton Cramer has a link to some long libertarian "bumbper stickers".
I had been trying to come up with some Libertarian Sayings on my own. While Clayton likes the longer more nuanced ones, I have always prefered the short ones, but my standards are high. It has to be pithy and accurate. I have always liked the "There is no government like no government" but that seems more anarchist than libertarian. Someone has to enforce property rights so there is some role for government.
I saw this one on a t-shirt: "Vote Libertarian, Win a Freee Country". Short and to the point. I like it.
And this is the best one I could come up with: "A little government goes a long way" Similar to the no government one, but more in line with my idea of libertarianism.
Any other good ones?