Personalized Trick or Treat Monsters Baby Bib. Trick or Treat! Cute monsters with wide grins look for Halloween treats. Happy Halloween! 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"