The whole black goop (changed to a latex set) is based on your idea of an equipment that adds more of its type and spreads itself to allies. Four of the prisoner attacks are also based on your post about that. It's never a one to one conversion of course, but please keep your ideas coming.
I do have some heels though they aren't shown there. Ponyboots (hobbles the wearer but increases carry capacity), cursed boots of speed (SPD increase, but start your first turn stunned), maid heels (minor hobble effect but cleans yourself of negative tokens), and latex heels (part of the latex set).
Anyway, by coincidence I was just busy putting all the equipment in their proper Excel format, so I also added your last two ideas (slightly adapted). There's now also support for item flavor text btw. (Open the images in a new tab to read them.)
I'll keep the first one for once I add a dancer/buffer class (and corresponding moves).