Out of curiosity, do you think a Problem Sleuth tarot deck would work?
I'm sure it would work ... it would probably be more difficult than the Homestuck one though, as that has far more accessible symbology to build off, if that makes any sense.
So, let me see... Clowns for the Fool, PI for the Magician, NB for the High Priestess, Madame Murel for Empress, Weasel King for Emperor, Replicsimile PI (?) for Hierophant, PS and HD (?) for Lovers, Chicago Overcoat for Chariot, PS for Justice, AD on the stump for Hermit, the weird-ass doomsday dice thing for Wheel of Fortune, Demimonde Goddess for Strength (or maybe FAD destroying the Bowen Stillsen Dogg?), tightening the Gravity Brassier (?) for Hangman, Death for Death, Deus Ex Sewing Machina for Temperance, The Devil for Devil, the Clock Tower of Cartesian Alignment for Tower, the Comb Rave comb for Star, the Sun for Sun, the Sudocube for Moon, Sepulchritude PS for Judgment, and GPI and the Universe for The World.
And here I was sure it was gonna be Jade's tower. I guess I'm not terribly creative sometimes. Either way, glad to see more of these are being drawn.