Catkey refers to an original female tiger character belonging to フフニャ(狐虎猫)* (FurAffinity: ~HuHuNya, Twitter: @CatKey01292000 ).

A full-resolution collection of their commissioned works of Catkey is kept in this Google Drive, accessible from here and フフニャ(狐虎猫)'s Twitter.

_{* Japanese, Katakana: フフニャ Romanji: Fufunya | Simplified Chinese, Hanzi: 狐虎猫 Pinyin: Hú hǔmāo | Translation: "Fox tiger cat"}