Personalized I Love My Grandpa Grandson Toddler Long Sleeve T-Shirt. Cute I love my Grandpa Toddler Long Sleeve Tee - Red with lion grandfather and grandson. 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.