Animaniacs (non-existent "Minerva Mink" animated shorts; early 1990s)
From The Lost Media Wiki
The entire Animaniacs cast, including Minerva Mink (top).
The Warner Bros. animated variety show Animaniacs supposedly had a number of Minerva Mink shorts aside from the two released ("Meet Minerva" and "Moon Over Minerva") that never saw the light of day. This was because of the excessively risqué content of the Minerva Mink shorts, those released and unreleased, that obviously wouldn't please the censors and anti-indecency groups, and that would possibly over-please certain other groups.
To this day, the unreleased shorts haven't been released to the public in any way, shape or form, be it through reruns, DVD releases or the internet.