After a few inquiries about designing and publishing third party content for Babes in the Wood, I added the following text to the game page:

Licensing: Do you want to create your own content for BitW2e? Hollows, Shadows, Playbooks, or anything else? Well, have at it! Babes in the Wood 2nd Edition is published under a (CC BY 4.0) license. Basically, you can make whatever you want, charge whatever you want for it, as long as you credit the original work and state that your work is and independent publication not affiliated with World Champ Game Co.

 I'd love to see what you make to expand this game and this setting! I'd be happy to share it as well if you tag me on twitter @WCGameCo when you release it. I intend to design and release more Hollows too (and maybe even more playbooks and some other fun things!).

Thanks a lot, hope you're enjoying Babes in the Wood!