Thank you for your guesses! So far though, nobody has guessed correctly what the last mystery picture is, SO, I've decided to give you another day to guess and will post the answer tomorrow night...
I've added a picture here of the same item--taken from further back, to make it, perhaps, a little easier?
I'll give you a hint too:
"This is not something that most people would have on hand in this quantity, but is something that anyone can purchase at their local Mac's store if desired."
Outside of that, would you please pray for us, as certain members of my family are going to bed with upset stomachs tonight... Never fun! Thanks so much~