I was reading the latest New Yorker on the bus (I don't actually read it; it is a clever ruse to make me look all intellectual-like so chicks on the bus will dig me) so I was looking at the funny pictures in the New Yorker when I was on the bus and one of the ads that are often off to the sides of the column caught my eye:
Mr Happy Crack says...
"A Dry Crack Is A Happy Crack!".

mrhappycrack.com

I will definitely rate this as effective advertising.