Personalized Merry Christmas Reindeer Toddler Long Sleeve T-Shirt. Merry Christmas! A reindeer, or maybe a moose, wearing a Santa hat and scarf sits on a Christmas present while holding a cup of hot cocoa. Maybe he's frustrated by the tangled Christmas lights? 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.