Personalized Twice As Lucky Toddler Long Sleeve T-Shirt. Irish Engineer, twice as lucky. Anyone can find a four leaf clover but you'll need an engineer to come up with a better, luckier, eight leaf specimen. Fun gift for birthdays, holidays 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.