Union Pacific Railroad tried that a few years ago with Model Train Manufacturers. They even went after a Company selling calendars with UP pictures in them and the calendars were made in England. Many years before that, UP and other railroads were paying model makers to do models of their railroad and then UP wanted money back. So much for good publicity. After about 18-24 months, UP backed down and dropped the copyright fee. Some people have a natural knack for screwing the best publicty forum around.