Personalized Environmental Engineer Gamer Baby Bib. Environmental Engineer I fight zombies in my spare time is a funny gift design for engineering gamers at birthdays, holidays and graduation. What would this world be like without them? 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"