Great photos. Can you i.d. the species for us? The second to last looks like some sort of Devil's Walking Stick (I can't tell the native from the exotic form). Just shows that fall can still bring some interest in the garden. While less showy than spring and summer, you might say that the fall season has understated elegance.
Top to bottom:
Yellow Ironweed (2 photos)
It would be funny to put a hawthorn twig in someone's chair :)