Well before Breaking Bad, and Better Call Saul (and even Mr. Show), Bob Odenkirk showed his comedic chops by playing Charles Manson on the short-lived 1990s TV sketch series The Ben Stiller Show.
In two of the skits, he plays the madman as a sort of incarcerated "Heloise" in "Ask Manson." In them, he answers questions on stain removal and car troubles.
The third one takes a different, and completely inspired, turn. It's Manson as Lassie and it's one of my all-time favorites.
I won't say anymore, just watch: