I was always wondering about the connection between Harry, Ron and Hermione's wands. They each have a different magical core. Maybe it's got nothing to do with anything, but then maybe it helps in killing Voldy. But then maybe the only connetion is that it was the wands that brought them together as friends. But then maybe i'm just going on about something completely irrelevent.
I've just realised how obsessed i am with "but then maybe" in this post but i cant be bothered to change it all.