Personalized Autism Grandchild Support Walk Youth T-Shirt. I love my Grandchild with Autism Youth T-Shirt - Kelly Green has a puzzle piece with pink heart on this support and awareness gear for a Grandma or Grandpa with a grandson or granddaughter on the autistic spectrum. 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.