Personalized Kawaii Mustache Heart Youth T-Shirt. Cute Valentine's Day Youth T-Shirt - Kelly Green with distressed pink heart kawaii eyes and big handlebar mustache. Novelty gift for mustache lovers on Valentine's Day. 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.