Be the Best Dressed Witch or Wizard in School with This Super Slytherin Robe From the Harry Potter Movies! Crafted With a Cowl Neck and Subtle Slytherin Snake Embroidery, it's a Robe Fit for Future Dark Arts Masters. So, Just Remember: Don't Let Your Ambition Get The Best of You! (We’re Talking To You, Voldemort!) Let your imagination run wild as you try and oust the dark lord - head up to the owlery and spread the word - Slytherin's the way to go! With this robe, you're sure to have all your magical peers green with envy.