A/C push buttons gasket
i never had a problem finding one of these
its usually the only part that works and is worth anything when you find an aircon switch in a pile at a swap meet
card with felt stuck on and glued round to line the button holes would work just as well
its just a friction damper to stop vibration altering your aircon/heat/demist choice
looking at what you have make a card version
put it on the buttons
then a bead of glue and glue what you have to the card
the card reflector used to make the buttons glow....well that's harder to find
aluminium foil doesn't work
might buy a plastic mirror
dave