There's no such thing as "too late" because nothing needs to be complete. You can talk about whatever you're working on at-the-time, and the challenges you're currently facing. Get to work!
I can't believe I've never thought of this! Could I then just list things off on my resume as ,"Currently working on..."?
Totally. And chances are, that's what they'll choose to spend most of their time discussing with you. Very few things are ever "finished", and even when they are - so what? It's what you learned, and how you decided to do certain things along the way where the real value and knowledge and experience is represented.