Personalized What If We Have Fun? - Jonathan James and the Whatif Monster T-Shirt. What if it's not as scary as you thought? What if you like it? What if We Have Fun? - Jonathan James and the Whatif Monster T-Shirt - Charcoal Grey, from the hit children's book of the same name by Michelle Nelson-Schmidt. 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.