A partner of mine recently took an interest in finding old nostalgic Newgrounds videos. I was reminded of one that included a number of characters dancing to Stamp on the Ground.
One character was a random dog girl all alone. I remember thinking as a child that she stuck out somehow. I learned years later during a similar nostalgia crawl that the artist created that character as a memorial to their late dog named Cleo.
I think that was wonderful. I never saw the character or artist again.