Needs a New Hat

I've been sitting on this for a while. I got a message from Tom, who plays bass and guitar for bellflur, that he needed a new hat. Over the summer, I made prototypes, for a similar project that did not suit. Recently, I saw that he was cutting down on caffeine and I remembered the Heterocyclic Hat Pattern. Tom wears a brown hat, so I'm making a version using the molecular structures for caffeine (in coffee) and theobromine (in chocolate). It's in the final knit stages.