“Simpsons Get Real-Life ‘Kwik-e-Marts”
“The Fox/7-Eleven deal is an example of a practice called reverse product placement. Instead of just putting products prominently in a movie or TV show, fake goods move from the screen to reality.”
Wiki entry on Kwik-E-Mart.

Australian Duff Beer case.
Albuquerque Isotope dispute here.
Famous products that don’t exist here.