When the internet surfers clicked on an ad banner promising that the "best selling men's fragrance in the country just changed. Want to try it? Click this banner. IT'S SCENTED," a little cardboard perfume tester actually printed out of the monitor in front of them, with a peeled-off area containing the fragrance.
— From How To Sell Perfume Online? Easy, Print ‘N Sniff at Gizmodo, with thanks to David and Abyss for the link!