Personalized Cello Toddler Long Sleeve T-Shirt. A cello with vertical cello text is a unique design for cello musicians and lovers of cello music at birthdays, holidays, 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.