The introduction of a "nipple double" for use in any production requiring "action nipples" where animation or CGI is impossible (i.e. the actor/actress is prudish). Also used as stand-in during tedious hours of make-up or filming. These roles go to faceless beauties who appear in films, but remain mostly anonymous.
Julie Strain performed stunt nipple for Geena Davis' breasts (and other body parts) in Thelma & Louise.
"Hey, we gotta film this purple nurple scene; somebody bring in that stunt hipple!"