There is a tiny, tiny hole in the back end of the museum Kermit that a rod goes into from the log he sits on. There wasn't any other entry for that Kermit as a puppet. I think it was an actual company poser, and could have been used in a poster or calendar, or even on the cover of the Rainbow Connection sheet music. But, unless that little hole in the back was used to plug in some wires, I don't see this having been used in the movie. Even the banjo is different, although where the strings connect there was a "K" which made it superbly awesome and I want one of those now, too!