Personalized Practice What You Peach Youth T-Shirt. Silly Youth T-Shirt - White with cute hand drawn Kawaii peach says PRACTICE WHAT YOU PEACH. Funny word play on Practice What You Preach. 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.