Personalized Firecracker 1st Birthday Toddler Long Sleeve T-Shirt. Cute Toddler Long Sleeve Tee - White 4th of July 1st birthday design with a big blue number one firecracker filled with red and white stars and star burst. Perfect for 4th of July first birthdays! 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.