I just bought a dark blue 2001 Audi A4 in the Santorin Blue Pearland I love it!
I am of course missing and looking for both head light washer cover/caps.
Anybody have some for sale, hit me up!

 

fairly common over on ebay.
Audi A4 Headlight Washer | eBay

or if you've got a junk yard near you you can probably get them for a few bucks

 

Thanks for your help. I got relatively lucky though, I got one that I think is an exact match for 20., and another dark green for 15. The prices really fluctuate on Ebay; one day, everybody wants a fortune, 75 or more a piece, then; you can't give them away on other days, and so they sell for a more reasonable 15-30. a piece. If you're lucky, you get your color, or have to spring for the rattle can to paint them after finding close to your color in O'Reilly's for another 9.