I can get behind that, at least for Alchemy and Cooking. or at least make a new tool for alchemy, like a Mortar & Pestles set. As for the prostitution, maybe make some kind of special costume set? We already have the pet suit which is combining three items into one, maybe we can do that with the latex suit and pet tail to make a cat/bunny suit. Could give a bonus in earning, increase charm, and would be more immersive for my "red light district" themed character that runs an "all kinds of entertainment" business.
Honestly, I can think of a few things, a type of whip that may double as a weapon, an adult toy set (though that is available in the sex menu, so maybe a set you can craft to take on the go? I dunno) off topic slightly, but I'm still hoping for shields, helmets, war hammers, and maybe dual wielding weapons (you have a whole extra hand, lets use it) to actually be implemented in the game, not a mod.