I wonder what their reaction will be when I get married and an invitation arrives in their mailbox...
Why not spare yourself the trouble, and just do one of those Caribbean weddings on the beach kind of things? You can send them an announcement after the fact, saying that you decided to elope. With half a dozen of your closest friends there to share your joy.
As far as funerals go, don't be surprised if you don't hear about it in time to attend either. I found out about one of my grandparent's death that way, in a two line email, no less. To top it off, none of my grandparents were JWs either.