Lots of us have , lots of piccy's in this section too, plenty of options for you to choose .
Try searching " exhaust tips" in this B7 section and you should get some good feedback and info.
Prices vary a fair bit but stainless steel is the best option , 90mm is a very good size , 100mm is popular but can sometimes be a bit tight in the valance cutouts but all down to your personal preference really.