Personalized Farmer Tractor EIEIO Big Sis Baby Bodysuit. Baby Bodysuit - Royal Blue with cute farmer girl in overalls riding a red tractor with a cow, pig and chicken graphic says BIG SIS-I-E-I-O. EIEIO! Cute farm theme Old MacDonald sister gift. Our unisex one piece baby bodysuit make great gift for newborns, babies, infants, baby showers and expectant moms. An ideal gift for any new parent who will want one in every color.