Personalized Big Sister Unicorn Toddler Sweatshirt. Big Sister Unicorn - A cute big sister unicorn prances with a heart on her cheek in a rainbow filled sky. Cute gift for any big sis! Keep your little one cozy and stylish with this soft and durable toddler sweatshirt. Designed for comfort and ease of movement, it features a classic fit with ribbed cuffs and hem for added warmth. Perfect for everyday wear, playtime, or chilly outings, this sweatshirt is made to withstand the adventures of an active toddler