Personalized I Found My Unicorn Toddler Long Sleeve T-Shirt. A true friend is someone who will recognize you for the unicorn you are. I Found My Unicorn Toddler Long Sleeve Tee - Pink, from the children's book "Bob the Unicorn" by Michelle Nelson-Schmidt. 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.