You can make sculptures from wire by twisting different gauges and colors of wire into shapes. This is a very easy medium to work with and makes for a great found art project.
If you have the tools and know-how, shaping metal into sculptures using welding and blacksmith equipment can be rewarding and enjoyable. Metal is an excellent medium for abstract sculpture and has enjoyed a great deal of increased popularity over the last century.
Metal additions can be made to already existing objects to turn them into pieces of art. This could include adding decorative designs to something like a light post or adding gigantic bat wings to an automobile and making an "art car."
A popular form of art in the southwestern United States is making metal cutouts. This involves cutting a design out of a piece of sheet metal that can then be hung up as a decoration.
Metal has a wonderful sound when you bang on it. Making percussive instruments out of scrap metal can be exhilarating, and these innovative instruments add a distinctive sound to your music.