A lantern is a decorative light source that is often used in celebrations, festivals, or at home. They use oil wicks for the light and can range in size from small to large. They are generally four or eight sides, with a hook on the top for hanging them. The windows of a lantern are typically made of glass or plastic. In the past, they were made of animal horn, and were punched with decorative designs. Many antique lanterns are now made of metal, with a grille around the light source.