American Weathervanes Cupolas and Finials offers an extensive line of aluminum and copper weather vanes, wood and vinyl cupolas, and copper finials in a variety of styles and sizes to make your home or garden stand out above the rest.American Weathervanes Cupolas and Finials offers an extensive line of aluminum and copper weather vanes, wood and vinyl cupolas, and copper finials in a variety of styles and sizes to make your home or garden stand out above the rest.