This is my fav, what's yours?

I've been playing this game for months and have found that I'm playing favorites with some of the special rare items like spellbound orchids and spirit mushrooms. When I see them being sold in sea trading, I get them no matter what. Who knows when I'm going to need to make 10 perfumes or gloves for Liang. Better to stock up than run short, don't you think? There are other special items, some of which I haven't been exposed to yet, that others may prefer. I'm curious about what else is out there. Anyone have any favorites?