Personalized Autism Puzzle Heart Youth T-Shirt. Autism awareness Youth T-Shirt - Kelly Green with a heart filled with interlocking puzzle pieces. Autism acrostic outlines heart: ALWAYS UNIQUE TOTALLY INTELLIGENT SOMETIMES MYSTERIOUS. 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.