Personalized Physics Teacher Meditating Toddler T-Shirt. 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. 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.