Heads Of Beef / Klub Katz - S1-E11
Trivia: The pig who runs the "Burgers Really Cheap" restaurant's name is Jean Bonne, and he says it's French. "Jean Bonne" is likely a deliberate alteration of "jambon". French for "Ham."
Serpent Of The Evil River / The Transplant - S2-E9
Trivia: When the computer is telling Courage about the giant kangaroo monster, the chicken it steps on looks just like the alien chicken from the very first episode of the show. It even has red eyes.
Courageous Cure / Ball Of Revenge - S4-E11
Trivia: This is the last time we see Courage's main enemies other than Eustace. Le Quack is the only one to escape after or during the half time show.
Answer: There don't seem to be many websites with sounds from the show but you may have better luck requesting it on one of the message boards or forums on the show. One site that may be worth trying is http://couragede.tripod.com/courindex.html that has a lot of multimedia, sounds and a message board of the show.
Lummie ★