If your mouth has ever watered at the sight of a dunkin donuts billboard as you wait tired and hungry in rush hour traffic, then scented billboards might push you over the edge. Bloom grocery store, of the food lion company, has just introduced its food scented billboard. Utilizing an industrial fan, these tantalizing aromas are emitted from the billboards to entice oncoming commuters to stop for a morning or afternoon snack. Combined with appetizing graphics, scented billboards are certainly a dieter&rsquos worst nightmare.