Malibu Rubber Moldings Question

[Nissan Racer]

Im working on restoring my 1981 Malibu right now and im noticing these really old rubbery moldings that go inbetwen the bumper and go around the license plate and various other places of the car. They need to be replaced but Im having a hard time finding them. My question is, 1. What would be the technical name for these parts? and 2. Where would I be able to find them.
THnx

[wmskateteam]

they're probably called filler panels or a rear valance, my bro has an 81 and they look the same way, check maliburacing.com, people are always parting out cars on there

[dalunchbox18]

bumper fillers, a1auto.com has them, they also have hard to find parts

lunchboxxx