(TrendHunter.com) Dunkin' and Harpoon have been teaming up for several years now and this year, the pair introduced three beers that will be available this fall, along with a returning favorite, the Harpoon... (TrendHunter.com) Dunkin' and Harpoon have been teaming up for several years now and this year, the pair introduced three beers that will be available this fall, along with a returning favorite, the Harpoon...