These were apart of an anti-smoking campaign a few years ago. I <3 Advertisements, they boldly appeal to our likes and dislikes so much as to influence what is considered normal.
Beautiful people would rather slurp animals then a smoker. Something anyone would laugh or be disgusted by, though the emotional trigger will stick with them for awhile in having at least a microscopic effect on the thinking relationship between customer (smoker) and the cigarette. Or more to the point: what it does to their mouth.