Personalized Bob T-Shirt. Bob T-Shirt - Azalea, from "Bob is a Unicorn" by Michelle Nelson-Schmidt. Bob has a big imagination, and he can't be pinned down by ordinary definitions. He believes he is a unicorn, and he lets everyone know it. 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.