So some of the de luxe models of Mopars in the '70s and '80s had a large horn switch with a wood-grain inlay in the switch's vinyl cover. The switch consisted of a concave sheet metal base that attaches to the steering wheel; the base is covered by thin perforated foam in the center, and over the foam goes a concave brass plate that has little teeth that contact the sheet metal base through the perforations in the foam when you push on the vinyl covering.
I can post a picture if necessary....
How to repair the horn switch on a de luxe model
