Personalized Autism I Love My Sister Toddler Long Sleeve T-Shirt. Autism I Love My Sister Toddler Long Sleeve Tee - Light Blue with beautiful multi colored awareness butterfly to show support for a sister with Autism, ASD, PDD, PDD-NOS, Aspergers. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.