The coolest one is https://obsoletemedia.org/jacquard-loom-card/
My favorite obsolete media is edge-notched punched cards. Oddly, not mentioned on the linked-to site, which only discusses interior-notched punched cards. Edge-notched cards could be searched manually. I made a deck a few years ago for fun. https://en.wikipedia.org/wiki/Edge-notched_card
Another missing one is music rolls. https://en.wikipedia.org/wiki/Music_roll .
- recordings made by Hayden in 1793 (probably not by playing at the playback speed) see https://www.authenticsound.org/a-1793-haydn-recording-what-c....
- mechanical automated carillons (http://www.kenneththeunissen.be/carillon-gent/the-drum.html , https://m.facebook.com/Beiaard-Boy-100932794844933/videos/sp...) these were and are programmed by hand (and may not be considered ‘media’, as they can’t be taken out of the device)