unique uses of frame styles

Hi:

I'm in the middle of writing a book about styles and templates in LibreOffice
and Apache OpenOffice. I'm currently trying to flesh out the chapter on frame
styles a bit.

Does anyone have any original ideas about how to take advantage of frame
styles? I've already written about watermarks and sideheads, but if you can
suggest a use that I haven't heard about, I'll credit you when the book is
published.

Thanks,