Wonder if it could be sprayed on....
Use this stuff, its what its meant for, and you can make it as light or as dark as you want. Completely legal, cheap aswell, I used it on my BMW & Merc, really good stuffhttp://cgi.ebay.co.uk/AMBERLIGHT-PAINT-FOR-HEAD-LAMPS-0010-AMBER-LIGHT_W0QQitemZ280466479440QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item414d1ad950#ht_612wt_940
i'm about to do the lamin-x on my fogs too. Might look a bit french for some but I think they look great! Bonus of the lamin-x stuff is that it should protect the lenses from stone chips as well. I've already had one cracked lens!