FLAPS.
(Friendly Local Auto Parts Store)
You can also cut one out yourself from a sheet of rubberized cork gasket material if you really want that olde-timey experience.
Seriously though, find a close by parts store that has someone with these traits behind the counter; bald or grey hair, knows that a 1990 honda civic, isn't a "vintage-ride", and mutters about "these darn computers".