Kandi Apocalypse. works to keep your username in the title, so That sounds good...

Actually Apocalypse is a name I use only on FA :P I'm Xyzzys everywhere else

That name reminds me of Xexyz https://en.m.wikipedia.org/wiki/Xexyz
but Apocalypse. is still your FA username, something potential buyers would be able to identify you by.

So why Xyzzys? And how come there's no option related to it in the potential choices? Just references to dragons...

Xyzzys is a nickname of mine that came about last year. Our high school hosted a charity volleyball tournament that if you joined, got you out of all classes for a day. Me and my friends (all the lazy kids lol) formed a team called Trash Party and we all had made up names that rhymed with our actual names, thus I was Xyzzy. Not only was it a play on my name but also a reference to my habit of cheating in video games :P the "s" came later when I was making the username, and it's just stuck (as both a nickname irl and a pseudonym) (we lost that tournament SO fast)

I didn't want to use it in my shop name because it's just not easy to say and remember, rather than the other ideas I had come up with.

The dragon references are based on both my literal obsession with dragons (I've always loved them since I was a kid) And that I really identify with dragons (seriously my mom would have to fight me out of my dragon costume as a kid, I wore it nonstop and firmly believed that I was, in fact, a dragon XD)

I say Sparkle Dragon Studios :D

That's what I'm starting to lean towards, it sounds super cute and really fits the theme of my shop :3