Well, look at what you can find when you're bored and looking through old posts... This was a great idea but I took the freebie approach from this thread:
http://www.1addicts.com/forums/showthread.php?t=610664
My 2012 135i (5/11 build date) had the white "lego" pieces in place so I just popped the tabs and voila! fog lights.
Thanks everyone!