Starting August 7, Dunkin’ returns with its 48-ounce Iced Beverage Buckets, available at participating locations nationwide. The Dunkin’ 48-ounce Iced Beverage Buckets are the perfect companions whether you are heading to the beach, sitting by the pool, or running weekend errands. These Iced Beverage Buckets keep the summer sips flowing no matter where you are. Image: Dunkin’The new Dunkin’ Iced Beverage Bucket Holder is a custom accessory designed to hold the bucket while fitting securely into a standard car cup holder. Starting August 7, you can gulp down the 48-ounce Iced Beverage Buckets like your life depends on it.