Official Harry Potter Ravenclaw Hair Scrunchie. Finish off your ponytail with this magical scrunchie made from satin fabric with a Ravenclaw design. Ravenclaw is one of the four Houses of Hogwarts School of Witchcraft and Wizardry. This unique product is made from polyester satin fabric, with an outside diameter of 11cm. The House of Spells is the officially licensed Harry Potter Jewellery & Accessories seller. You've repeatedly seen this unique scrunchie hairstyle; it’s an American classic. The iconic high pony with Official Harry Potter Ravenclaw Hair Scrunchie is retro and modern, reminiscent of the '90s. This hairdo can easily be created with a messy ponytail for casual outfits or dressed up for a night out. If you're opting for the Harry Potter Ravenclaw Hair Scrunchie ponytail at 9 to 5, brush your hair into a smooth ponytail for a clean, put-together look.