Personalized Sweetheart 16 Youth T-Shirt. Cute pink sweet 16th birthday Youth T-Shirt - White with curvy pink text and says SWEET 16 surrounded by pretty pink hearts. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.