Can I ask why “cocoa”? That is also the name of one of the major MacOS frameworks ( https://en.wikipedia.org/wiki/Cocoa_(API) ), and I’m concerned that it could lead to confusion.
If the name is just because it’s evocative of the name Hershey, we might consider a few alternatives, for example cacao, choco, etc. However, I would instead suggest the prefix “HT” — for Hershey Text. Many font families have similar name conventions, where a 2-3 letter prefix or suffix designates the origin (font foundry), as in “Trebuchet MS” or “URW Venus (see https://www.fonts.com/support/faq/lt-mt-ef-abbreviations and http://blog.extensis.com/fonts/abbreviations-font-names.php ). I think that “MT Bird,” “MT Pancakes”, and “MT Little Princess” would be compact, easy to read, and clear that they represent a family (or shared origin, at least). Thoughts?