In the "flippy doodle" featuring the King and Queen, Candy voices Glimia and Oswidge voices Throktar. Since Candy and Glimia are both voiced by Erica Luttrell, and Oswidge and Throktar are both voiced by Kevin Michael Richardson, this means that Luttrell and Richardson had to "imitate" their own voices.
Twinkle the Marvel Horse does a song and dance number in this episode. His voice is based on Christopher Walken, who sings and/or dances in every one of his movies.
The "Adventures of Fang" cartoon Dave creates is similar to the early Mickey Mouse shorts, complete with a Peg Leg Pete-like villain.
Bogmelon apparently has some success selling ducks as noisemakers, as duck quacks can be heard in the background throughout the plunderball game.