Too bad this thread is most likely polluted with idiotic responses, I actually like this idea.
I'll go with:
Jiraiya's "that's right, I gave that child a name" while dying.
Chiyo's "everything I've done in my life has been wrong. At least here in my final hour I can make something right for a change." also while dying.
Zabuza's "I wish, oh I wish I could go where you are..." also while dying.
I'm starting to see a pattern here.