a cover for caps of the plastic threaded variety typically associated with beverage bottles , the apparatus being comprised of two primary components , namely 1 ) a hollowed body sized and shaped for the receipt of promotional or advertising indicia or other visually distinctive personalizing indicia on its exterior surface and adapted for frictional engagement with a bottle cap , and 2 ) optional three - dimensional personalization means integrally formed with or mounted to the top of said hollowed body . by means of this construction is provided a combination bottle identification apparatus and bottle cap removal apparatus which may be used in conjunction with an ordinary beverage bottle equipped with a threaded cap for purposes of facilitating removal of the cap from the bottle , 2 ) personalizing the bottle so as to avoid the unintended consumption of its contents by another , and 3 ) serving as a media upon which organizations may impart various promotional and advertising indicia .