I just ordered a cover from BMW of South Atlanta, it was $4.33. Get a matching can of spray paint from one of the reputable online paint suppliers based on your paint code (they come primed), Paint is around 19.95 plus shipping.

It looks like you are missing the tangs on the spray nozzle that retain the covers. You need all three tangs or the cover will not stay on. These are $13.30, also from BMW of South Atlanta.

Use realoem.com to figure out the exact part numbers you need as the inner and outer are different.

You'll end up taking off the front bumper to replace the nozzles...