Personalized Headteacher (Funny) T-Shirt. Funny Headteacher - Will Work For Cupcakes design is so sweet on a T-Shirt - Silver occupation gift, stocking stuffer or retirement keepsake. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.