Personalized Dancing Rock Toddler Long Sleeve T-Shirt. A happy dancing rock is a humorous design to personalize with a name or your own "Rock on" text. Fun gifts for birthdays and holidays. 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.