I must have missed this thread the first time around.
Anyway, about a year and a half ago, my soon-to-be wife gifted me with Le Tarot de Mal-Maison. As you can see, it’s based on vintage erotica (with very little if any relationship to tarot imagery). Very much in the style of Le Tarot des Femmes Erotiques (but majors-only). I had never heard of it and, astonishingly, was unable to find even a single reference to it on the web. A rather homemade “Certificate of Authenticity” that accompanied it creditied it to "Sephirot Productions" and "4 Suckers" in Milan. A little Googling showed Sephirot Productions to be a design and branding company, of which 4 Suckers was one of their subsidiary brands.
The decks Adam posted above were then on the 4 Suckers site (they’re gone now), but no mention of the Mal-Maison at all. Since then, I’ve still never encountered a single reference to it. While I guess that makes it kind of rare, its value to me lies elsewhere.