Personalized Royal Trumpet Toddler Long Sleeve T-Shirt. A trumpet with the word trumpet wearing a jeweled crown is a unique music design for horn musicians for marching band, back to school and graduation. 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.