I've found all 255 words, but I'm still missing 33 more forms TwT
Oh, sorry, actually there're only 32 left because I just found this one :))
For some reason,
1 cup of Toilet + 1 cup of Evil = this toilet-head form.
I’m not sure if it’s a bug or not, because when I give just the toilet cup to Horu, it only shows an expression and text, but doesn’t transform into anything.