Diy Christmas Costume Pictures. You’ll be the best dressed Santa’s Christmas Helper in this Elf Suit Tunic. The tunic is made of green velour and trimmed in bright red felt. So when a Santa Claus costume just won’t do, it’s time to get the creative juices flowing. Fun and Quirky Christmas Costume Ideas For Your Holiday PartyTired of attending holiday parties as Santa Claus or Sexy Santa?