That was me. I dreamed that the Muppet crew had gathered in some large old house in the country (probably somewhere in Connecticut) for the weekend, in order to brainstorm ideas for a new show.
And yes, one of the new characters was a puddle of water in a sink, played by Dave. And in the living room, Jim and Jerry were singing something while Richard backed them up on the ukulele.
You know, now that I think about it, that dream might have symbolized something. I think that house belonged to Jim, and it was just him and the other Muppet performers there (and possibly other family as well), just having a good, healthy goof-off session, far away from the television executives. Might have helped show that Jim and the others did their best when they didn't have execs breathing down their necks.
One dream I had involving Richard a while back involved a long walk with him through Central Park on a gray, overcast afternoon, and there were other people flying brightly colored kites.