Personalized Big Brother Duck Toddler Long Sleeve T-Shirt. Big brother duck is protecting his little duckling sibling with an umbrella while they sit in a puddle. Cute gift for any big bro! 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.