Fog light covers?

I know this is a topic that is well covered, and I was planning to do something to cover my lights on my 328, then I saw this:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=230375473878&ru=http%3A%2F%2Fmotors.shop.ebay.com%3A80%2Fi.html%3F_nkw%3D230375473878%26_sacat%3D%26_trksid%3Dp4506.m270.l1313%26_dmpt%3DMotors_Car_Truck_Parts_Accessories%26_odkw%3D328%2Bferrari%2Bcover%26_osacat%3D0%26_fvi%3D1&_rdc=1#ht_2796wt_1146

Any pros or cons before I install these??? I figure they would at least make a good template!

Thanks,
Bob