Personalized Cute Pre-K Preschool Butterfly Youth T-Shirt. Pre-K butterfly comes on Pre-Kindergarten Youth T-Shirt - White teacher gift. Perfect for end of school gift giving or back to school. graphic c. Ne' Metzger. 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.