Let your little ones get ready to set sail by making their own milk carton sailboat. A milk carton sailboat is easy to make and can be done by using recycled materials such as an empty milk carton, a straw (you will want to clean out the straw and milk carton before beginning) and scraps of paper. Click here to visit Max and Mum Kids Activities to create this fun milk carton sailboat and let your little one's imagination set sail.