All of the places listed so far, I am ticklish. Some bizzare ones on me (in my opinion) are: forehead, lips, tops of feet, calves and inner forearms.
Speaking of inner forearms, did anyone ever play red/pink/white roses on forearms when they were kids? Does anyone even know that game? I would always try to get people to do white roses on my arms all the time because it tickled so badly and I loved it!
My collarbones are pretty ticklish