For polishing Blind box bling, right now there is only achievements for polishing Schrödinger's Cats collections.
But I hope there will be more of these, they are fun to find.
Can only polish on PC or mobile browser at the moment, can't polish on the APP.
I was polishing 250 to 300 collections in a day.
I polished all the achievements for Schrödinger's Cats polishing using this link to find who has them.
I am the first to polish 1k.