Some other options: Hoop-Dee-Doo Revue or the Polynesian Luau -- both can cost $$$, but they are great fun.
Visit the Boardwalk Shops -- they have a shop full of dozens and dozens of different colored M&Ms -- you can mix/match your own personal selection. If your children are into pin trading, there's a great pin trading location at one end of the BW. It's a place where people gather to talk, trade and look at pins.
For a mom & dad only night out -- arrange for some kids care and head over to Pleasure Island. There are lots of clubs, comedy shows, dancing, shops, dining... a great way to spend a kid-free evening at Disney.
Unless you are staying there, visit WL. The kids would love the Hidden Mickey Hunt (ask at the front desk); visit the geyser in back of the lodge as well as the otter pond.
So much time, but it will fly so quickly. It's a good idea to plan ahead. Have a super magical vacation!