https://www.youtube.com/watch?v=VFs3_COOMp8

He opens up saying that he uses some small plastic containers for mushrooms that he got from the supermarket for storing his notes/slips! This is definitely a unique form of zettelkasten box!

He talks about the benefits and some of the joys of using analog practices, particularly in analogy to music and arts.

"meine kleine zettelkasten show" sounds like it ought to be a Mozart compisition like Eine Kleine Nachtmusik