Well, I saved after I picked them up and carried them around for awhile, unfortunately. So, I can only tell you what happens when I click on them now, when they're either IN or OUT of my inventory.
Ok, the one that was supposed to make me feel agile, did nothing (it said it made me feel agile, but no change). Same with the flowery scented one, which I supposed was damaging, yet it did nothing.
And I saved before the red dot appeared; basically right outside of the Imp Hero's house (a little while away from the spider).