Stern Pinball Produces Additional Metallica Monsters Premium Pinball Machines — ELK GROVE VILLAGE, Ill., Aug. 13, 2015 /PRNewswire/ —http://www.prnewswire.com/news-releases/stern-pinball-produces-additional-metallica-monsters-premium-pinball-machines-300128287.htmlMetallica Premium features exclusive game art and a one-of-a-kind collectible Sparky toy designed by world-renowned pop culture artist “Dirty” Donny Gillies. Donny is a…