Dunkin’ Donuts features frighteningly fun Halloween lineup this October   New Spider Donut features a chocolate MUNCHKINS® donut hole treat on top, plus the Dunkin’ Dozen donuts get a Halloween makeover, including the Boston Scream, Witch’s Brew-Berry, Vampire’s Delight, Wicked Chocolate and more Throughout October, guests can purchase any 10 MUNCHKINS® for the special price…