Personalized 2nd Birthday Puppy Blue Toddler Long Sleeve T-Shirt. I'm two! A cute blue puppy has a birthday hat and a cupcake with a 2 shaped candle. Happy 2nd birthday to the two-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.