Animal motifs aren't just for children's rooms -- they can be a sophisticated addition to any room. If you have a house with a wild or jungle theme, try an an alligator or gorilla set of cabinet knobs. There are so many different styles and finishes, you'll have to check out all the animal themes from different cabinet hardware brands to find the one that suits your style. Animal shapes are also great if you have a country cottage or cabin theme in your home. For a beachy bathroom, go with a fish or a crab.