Los Castillo Mexican Silver Plated Water Jug. Los Castillo Mexican Water Jug. These are very unusual little water jugs, with the handle in the shape of a crested hummingbird. The tail of the bird is Malachite and Lapis and makes a beautiful design. The silver plate is hand hammered and is in excellent condition, as is the whole jug. The jug has the Castillo stamp and is numbered 209.