Making large candy foil wrappers?

Hi, I am trying to figure out how to make a cadbury egg foil wrapper to go with a Kidrobot Munny that I am working on. I'm turning the head into the egg portion but I need to find a way to replicate the wrapper. I want to make it as close to the real one as possible, including the shiny foil on the inside. I want it to look as if someone tore away some of the wrapper and bit/broke the chocolate exposing the creamy inside. Any help would be very much appreciated. Thanks