Personalized Farmer Tractor EIEIO Big Sis Toddler T-Shirt. Toddler T-Shirt - Heather and Royal 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. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.