JPlop Goes the Weasel's title is a pun on an English nursery rhyme that is often played by what toy?
Plop Goes the Weasel Plop Goes the Weasel is a 1952 Foghorn Leghorn cartoon, directed by Robert McKimson and released by Warner Bros. in 1953. The title is a pun on the song title "Pop Goes the Weasel". The aforementioned tune is played during the intro and it is played almost every time the weasel appears and subsequent cartoons involving the weasel vs Foghorn.
Weasel Stop Weasel Stop is a 1955 Foghorn Leghorn animated short film from Warner Bros. released in February 1956 and directed by Robert McKimson. The cartoon is unusual in that a different dog (instead of the Barnyard Dawg, maybe his cousin) is used as Foghorn's nemesis. The title is a pun on the phrase "whistle stop".