There is no kitten. Only Zuul.
Best thing I found on the internet today: In the Hall of the Mountain King but it's a 6/8 latin jazz piece https://www.youtube.com/watch?v=dqFCrSTrEM4&feature=share
The word "nonbinary" alone doesn't really say much about the person who uses it. What gender(s) might this person have? Do they have none? Is "nonbinary" the entirety of their gender? There are even more possibilities.
What this term does is create starting point from which to learn about it's bearer.
"Nonbinary" is a simple word for a beautiful and endlessly complex people. So, set aside any assumptions you might have, and make room for the unexpected.
The State of the Wombat