Personalized Tuba Geek Baby Bib. Tuba Geek Music Baby Bib - White is fun for the whole tuba section in marching band or concert band. You'll love this funny tuba music slogan. 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"