The 3-headed being from Porky in Wackyland (or its color remake, Dough For the Do-Do) whose mother was "frightened by a pawnbroker's sign."
Comet will make your face turn green! Comet, it tastes like Listerine! Comet will make you vomit! So buy some Comet, and vomit, today. (tune: Col. Bogey's March [see also: Hitler has only got one . . . .])
Which of Santa's reindeer is on perpetual KP? Spoiler Comet. Because he's really good at cleaning out the sink.
As Jack Nicholson's character in The Bucket List said, 1. Never pass up a bathroom 2. Never waste a <censored> 3. Never trust a fart.
I had to look up what the hair gel really was. Never saw the picture. I find myself thinking of the "Turtle question" for which the answer is "A submarine."