Personalized Whatif Monster I'm Sweeter Than I Seem Toddler Long Sleeve T-Shirt. He may be anxious, and a little bit pessimistic, but he sure is sweet! Whatif Monster I'm Sweeter Than I Seem Toddler Long Sleeve Tee - White, from the children's book "Jonathan James and the Whatif Monster" 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.