Personalized Physics Teacher Meditating Baby Bib. Ohm-m-m-m Physics Teacher Meditating text. Meditating with ohms is pure physics and a funny design for back to school, birthdays, graduation and holidays. 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"