Personalized Irish Rock Baby Bib. A dancing rock holding a shamrock is a humorous design for St. Patrick's day, Irish and Celtic festivals and birthdays. Our Baby Bib is rated high in convenience and durability and with a variety of fashionable colors, your baby can be trendy. Mix and match to any outfit. 100% cotton ring spun combed heather colors are cotton-poly. Width 7.75", Length 11.75"