I wonder if this is what we have to look forward to every day from now on.

I've only seen NLC and Mushroom Shrine. I think it's any item except pots.

Actually, what it looks like is level 60+ armor, cruddy earrings, and "unorthodox" scrolls (Clean Slate, White, Chaos). If it was everything except pots, we'd have, "________ got Dark Scroll ________ from the Mushroom Shrine Gachapon. Congrats!" every 30 seconds.