Personalized Bob Drawstring Bag. Bob Drawstring Bag - White, 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. A durable and versatile cinch bag built to handle daily use. . With its lightweight design and reinforced corners, this pack is perfect for the gym, travel, or everyday activities.