actually this will be a lot easier!! i just posted them all on a page here! https://koinuko.neocities.org/cookierun/heads.html
(sorry for fixing replies a million times lol) I saved the headsprites from the Cookie Run wiki, but they don't have a lot of the newer cookies. They don't have Chess Choco or anyone after that update, but I saved all of the ones they did have!
super cool!!