I also have a link (which may or may not be the same link Jerkchicken has) to The Colors of the Sky 2 - Kappa's and Oni's magical adventure - supplement, which adds some American, or at least Western story elements. The Henge (and Mononoke) available there are Kodama, Western Fox, Witch's Cat, Raccoon, Sheep, Tsukumogami and Magical Girl (who, like Witches, have male counterparts).

The authors sure have a wide repertoire available.