Hamburger Hallucinations

(above) Details from a McDonald's "Space Explorer" Coloring Calendar for 1983, featuring the rather unfortunately named technological innovation of "Rub 'n Discover."  Children are encouraged to "rub" various blank spaces in the calendar to "discover" that the residents of McDonaldland are capable of selective invisibility and constant surveillance;  (below) A cheeseburger hovering over a creek.