Personalized Cordelia and Birds Believe in Yourself Infant Tutu Bodysuit. If you believe in yourself, you can achieve whatever you set your mind to. Cordelia and Birds Believe in Yourself Infant Tutu Bodysuit - White, from the children's book "Cordelia" by Michelle Nelson-Schmidt. Tutus are all the rage! This one is made of matching tulle and stitched right into a soft creeper.