2. Tin stars: The bigger the star, the better. Groupings of two or three stars is most desirable. Four stars is overdoing it (looks like you're trying too hard). If you must buy four stars, might I suggest placing one in the garden or on the side of the garage?
1. Steel roofs (of the vertical panel industrial variety): A quick and long-wearing way to create a quasi-machine shed look for your home. More and more of these roofs go up by the minute.
Photo of "investment grade roofing" from Metal Roofing Alliance
Photo from flickr