Based on a dream I saw some years ago. It was about this bird-like airship thing... no one knew who built it or when, but it had been gliding around ever since. I was probably influenced by Miyazaki's Laputa and stories of ghost ships. Pretty cool stuff.
Miyazaki was one of the first things I thought of when I saw this. I love how it has little wheels underneath it, almost as if it wasn't so big, it could have been a fantastic pull toy.