Personalized CPA Pain T-Shirt. CPA Certified Pain In the Ass. This humorous twist on the phrase certified public accountant is funny design for birthdays, graduation, holidays and tax season. 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.