Personalized My 1st Trip Around the Sun Toddler Long Sleeve T-Shirt. My 1st Trip Around the Sun. A cute astronaut holding a balloon floats in space. Happy first birthday to the one year old! 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.