scrap metal art & artists

This is indeed slightly "off topic" but do you you guys have any favorite scrap metal artists? You know that scrap metal sculpture is a pretty big thing in art, right? If you both are into scrap and love art, you should check it out. Me, I am into the South Dakotan sculptor John Lopez, who creates life-sized scrap metal sculptures with a uniquely Western American twist. In his hands, old discarded farm equipment is recycled into sculptures of iconic creatures from the American West like a bison, a horse plowing a field, or a Texas Longhorn etc... (Google him, he is fun.) And do you have your own favorites?