I've searched with not much result. The switch mechanism is fine but the button has broken off. It appears to have two eyelets that it rotates on but one is broke. I'm not sure if I can replace just the button or if I have to buy the whole window switch which seems to be around 100 bucks because I have the power folding mirrors and it's all one piece.

 

Try the U Pick junk yards first. It will be much cheaper. The regular junk yards will also be cheaper than buying a new one. Ebay is also an option.