I'mlooking for novelty trays that hook up to side of cars. You usually find these loaded up with bogus food

You find profoundly of these within saloon shows depicting the 60's.Usually the trays contain impression hamburgers, soda,banana splits

Answers:
Do you be going to the ones that carhops put on your vehicle? If so, try this site:
http://www.dinerdecor.com/retrotrays.html

I'mlooking for novelty trays that hook up to side of cars. You usually find these loaded up next to fake food