rubber plugs for wing window adustment access

[airgrabber]

Does anyone know where to get the small, round, rubber plugs that go into the wing window adjustment holes on the top of the door panels on 1970 B-body cars? I tried the local Ace hardware store and purchased every size they had and none of them fit properly. Has anyone had any luck finding these or is it something you need to get from a junk door and dye it the correct color?

[70gtx]

year one maybe or i may have a used one. email me if you want me to look. carmansdog@aol.com