I wish I knew he made this one because it is AWESOME!! It is similar to Rick Carter's work, but I can't find a signature anywhere on it. The dichro inside is some of the best you'll ever find, sooo brilliant with so many colors popping everywhere! Then the wigwag window on the front and the rainbow to black & white wigwag on the back are just fantastic as well. Great deal for a super fun marble, it would be twice this price if I only knew who made it.