Unicorn Birthday Tutu Dress for Little Girls by Mia Bambina Boutique Canada. This multicolored tutu dress will be a perfect addition to a girl's unicorn-themed birthday party. Sleeveless tank top bodice with printed unicorn symbol and crystal rhinestones. Pixie cut dress with multicolored tulle sectors sparkles as she twirls. Unicorn Birthday Dress has a zipper closure and an adjustable tulle bowknot on the back. A high-quality garment with cotton lining for extra comfort.