Igloo idea

Well I had this wonderful idea to make an igloo out of milk jugs for the kids in the backyard. Seemed simple enough; hot gluing a ton, and I mean a ton, of milk jugs together to form an igloo they can spend the winter playing in. Man was I naive, hot glue doesn't like cold weather and gorilla glue doesn't hold up to the Alaskan cold and wind. Unless I can figure something else out we are going to have to scrap this idea, it's do frustrating!!