Personalized I'm 3 with Del and Balloons Toddler Long Sleeve T-Shirt. Help your child celebrate their birthday in style with PBS KIDS. I'm 3 with Del and Balloons Toddler Long Sleeve Tee - White, a perfect gift for the birthday kid on their special day. 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.