Here are some of mine, in the order I had them.
-There is some middle-aged country music star appearing on TMS, and she's in an unhappy marriage to some guy who keeps coming in and trying to mess up the show. The guest star finally dumps the guy...but then she starts taking a romantic interest in Kermit. Really bizarre; the dream also involved the rest of the cast having a small party in what looks like my grandmother's living room.
-I think I've mentioned this in another thread. The Muppets are doing an alternate version of 'Muppets in Space,' in which they have to fly out, board and explore an abandoned spaceship (which looks like something out of the kingdom of Gorch). It turns out that the whole scene is part of Scooter's dream, and he's having said dream while in the hospital recovering from surgery.
-This one I had a few nights ago, and it probably would have made a cute TMS sketch: Kermit, Fozzie, Gonzo, Scooter, Miss Piggy, Rowlf and Robin are mountain climbing, probably in the Swiss Alps, and the seven of them burst into a chorus of "I'm Gonna Be (500 Miles)" by the Proclaimers.
I've had one or two involving Richard Hunt, but that's for another thread.