I crocheted my mole for our chemistree ornament
Dressed in a lab coat with wire glasses!
Anyways, hmmm. For the shiny look, create the costume out of aluminum foil and spray paint it gold and red? Or just construct the costume out of paper and buy metallic red and gold spray paint. Make the mask out of a styrofoam plate and spray paint that too, but make the plate mole shaped for the snout so people can tell it's a mole.