Slider knobs ideas?

A wanted thread is still the best idea. I looked around on a few supplier sites and didn't find any. I see a lot of heater controls for sale here. Somebody has one laying around.
Yeah I spent probably about an hour last night googling and searching eBay for any reproductions and there’s nothing specifically for Mopar’s. They do make some for 69-70 mustangs so if push comes to shove, I’ll give those a shot.