Personalized Cute Penguin St Patrick's Day Leprechaun Hat Shamrock Toddler Dress. Celebrate St Patrick's Day with this adorable penguin dressed in a leprechaun hat and holding a shamrock. This delightful Toddler Dress - Heather is perfect for adding a touch of festivity and charm to your celebrations. Your little one will be adorable and comfortable in this 100% combed ringspun cotton 1x1 baby rib dress!