Here's the companion blog article:

https://followmeanddie.com/...o-order-sample-deck/

There's a company I buy things from (pre-made card decks) that will do very high quality bespoke PVC cards. This pic is an example of their work (not bespoke). The cards are a good thickness, basically indestructible, and have a slightly-pebbled surface to keep them from slipping against each other when held (a problem I have with some of my other PVC cards).

What's the name of the company?

Their name is 妖风道骨桌游. :) I deal with them through https://wohstudio.taobao.com/search.htm

And this is the link for the bespoke cards purchase: https://item.taobao.com/item.htm?id=574541237352

That's a cool looking website. Too bad I can't read anything on it except DIY.

Chrome has an auto-translate mode that does well enough for figuring things out (along with some really funny mistranslations).

I'll try it.

Be aware that Taobao is a huge time sink. You'll find the weirdest things there, and they'll link to even weirder things until you're in the dark corners where people sell live giant hornets in bulk.

Live giant hornets can come in handy on some quests.