Walley World Flag - National Lampoon's Vacation 1983
You can barely see the 'presidential' Walley World Flags at the front of the limo. Normally national flags are flown in this spot. But the makers of National Lampoon's Vacation had an eye for detail and made sure limosuine car flags were in the film.
The badge of the Walley World employee can be seen on John Candy's upper right shirt.