The passenger seat button on my 991.2 has a hole in the seat heat button on the center console. I have found covers for some of the buttons in that area, but not that particular one. Zany ideas?

 

I think best option is buying a used / faulty climate unit with heated seats (or heated and cooled if that’s the button setup you have) and disassembling it and swapping buttons. I’ve never seen those buttons avail aftermarket or separately, but I haven’t looked either.