Personalized 6th Birthday Ice Hockey Sports Party Boys Toddler Long Sleeve T-Shirt. Fun ice hockey themed 6th birthday Toddler Long Sleeve Tee - White with sports number 6 logo and I'm six quote. 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.