This next costume is inspired by the fake German heiress who schmoozed her way into New York’s high society. Grab your pom poms and practice your high kicks to pay homage to Chrissy Cunningham (R.I.P.) in this Hawkins High cheerleader costume. Then that ghost story that seemed far fetched seems like a gritty documentary that could easily come to pass. California Costumes has a super selection of intricate holiday cosplay costumes like a sexy Mrs. Claus with a mini dress and cape, as well as deluxe Mrs. Claus that has a floor length long cloak.