Littlefoot1616's Battle of the Sacred Essence. It was such an inspiring story that I wanted to write my own LBT fic. Also, Keni's A Sharptooth's Heart inspired the idea for a KH crossover. His main character Rex is based off of Sora, and I figured, "Why not have Sora and his friends come to the Great Valley?"
So those are my main inspirations. But I also drew inspiration from the classic Mickey, Donald & Goofy cartoons. I wanted to bring that classic Disney feel to my story.