The usual outdoor furnishing that contains a storage space is an outdoor bench. Instead of the usual plank of wood with two legs on both ends, outdoor benches these days have boxed structures which can be equipped with drawers or a top-removing lid. You can store whatever knick knacks you need to spruce up your backyard for your own or party use.
Next, consider what type of outdoor cabinet you would like to have. Some outdoor storage cabinets are made of plastic. These types are generally waterproof, spacious, and have a number of useful features. Other outdoor storage cabinets are made of wood. These are often very spacious, relatively sturdy, but are not always waterproof, and may not be able to stand extreme weather conditions. If you are going for wooded outdoor cabinets, make sure to thoroughly seal the wood. Some storage cabinets are made of metal such as steel, combination metal, and aluminum.