Acorn key keeper, cast iron, antique brown. Forgot or lost your house key? This “hide a key” cast iron bird is the perfect solution for you. Perfect for placement outdoors or indoors.. Never be left standing in front of a locked door and always knowing where to find the spare key. This decorative acorn key keeper figurines are a good hiding place for keys. This cast iron key keeper have been hand cast according to age-old tradition and craftsmanship.