HAMPDEN – Northeast Sky Artists Inc. of Hampden, owners of Blue Hill Pyrotechnics, has expanded to include a U-Haul rental dealership and a limousine service. The new businesses are located at Blue Hill Pyrotechnics’ main office at 176 Ammo Park off the Odlin Road in Bangor. For more information, call toll-free 1-800-244-6682, locally at 941-6682 or visit their Web site at www.fireworksmaine.com.