SilverWook said:

Starlog once ran a cartoon with a similar gag not long after ROTJ came out. Luke hugged Yoda in his grief, and pulled the puppet right off the hand. ;)

Yoda could also randomly speak in Miss Piggy's or Grover's voice as he expires?

darth_ender said:

^This is a fantastic idea! Could be used in Empire as well. You could have Yoda sing "Fuzzy and Blue" or when going through Luke's items when they first meet, he could toss out stuff saying in Miss Piggy's voice, "Underwear, underwear, underwear..."