Hmm...let's see here....
One of my favorite TMS moments is Rowlf playing piano for Fozzie who's trying to sing "I Got Rhythm", but he of course is off beat. Then at the end Rowlf changes the words to "I don't got rhythm"
Another TMS moment, also with Fozzie and Rowlf, is them both playing the piano and Fozzie is all, I didn't know I knew how to play. I also like when Rowlf goes "modulate" and Fozzie is like "huh?" and then Rowlf just changes the key and Fozzie's like "Oh" They should've had the two of them together more often, comedy gold
The Muppet Movie - all the ridculous running gags "myth, myth, yesss?", "Have you tried Hare Krishna", Sweetums - "Wait for me"!
GMC - "You're old man was a friend of mine" and the picture, Gonzo hailing the taxi, Gonzo's nose in the elevator, Lew Zeland "I've got the paper towels" Rowlf "I speak their language"
TMTM - the huggies, "It's just New York" Animal playing polka music
MCC - The rats "Heat wave! This is my island in the sun"
That's all, I like the other movies too, but I haven't seen them enough times to have favorite funny moments.