Personalized Unicorn 3rd Birthday Women's V-Neck T-Shirt. Unicorn 3rd birthday! Cute unicorn with a flowing pink mane stands on a rainbow in the clouds surrounded by stars. Adorable gift for the three year old! 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit