Personalized Our 1st Mothers Day Twin Boys Toddler Long Sleeve T-Shirt. Two little boy bunnies with our 1st Mothers Day quote for twin boys come on a Toddler Long Sleeve Tee - White. 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.