I'm pretty sure they were thinking of Vogelfag when they designed Sunny and wrote the Gonna Be My Day song. As well as Zipp Storm stealing Sunny's main character status and questioning why nobody believes the schizo telling the truth when she sus out Misty.
https://www.youtube.com/watch?v=Vmp9DdjHT6c&list=RDVmp9DdjHT6c&start_radio=1

Fucking Vogelfag correctly assumed that Fausticorn was voiced by Lauren Faust herself in Shawn Keller's animation video. That guy has powers. Also something tells me he's among us inside Lauren's birthday card thread this very moment.

Fucking Vogelfag:
https://vocaroo.com/1oHodh5vYKpR