Not only was the idea to bring back some of Guinnesses most iconic avertising from the 30's and 40's well recieved, but it led to more work in an area overlooked as an upsell opportunity. What's better than a Guinness? A Guinness and a Harp. The iconic Irish beer brands intent was to sell more of both brands going into St. Patty's day by shining a spotlight on a classic recipe as the center of their shopper marketing efforts.