I'm trying to think about it if it were me who had this assignment….

What colors remind you of this disgust?

* for me, greens, grays, and orange spots, kind of like mold

What textures remind you of this disgust?
* I think of slick slimy sticky surfaces

Do you smell, see, or hear this disgust first?
* I would notice smell first

Where in your body do you feel disgust
* for me, in my gut, my abdomen

I guess I would just keep asking myself questions like this then see what materials would mimic these qualities (silicone mimics oozy sliminess etc"