According to the latest poll, people are most interested in seeing more XUL examples. Perhaps I will try to post some more examples of things that might be more complex, such as trees, overlays, DOM stuff and so on.
On the disturbing side though, an equal number of people would like to see pictures of Blake Ross naked. You do realize that he is only 8 years old? It might even be illegal just to think about it.
That said, there is a site dedicated to providing top quality pictures of Blake Ross naked, without having to worry about the legal issues.