If anyone was into the band Boards of Canada, this is how they created a lot of their sounds.
"[the strings in Semena Mertvykh were] performed into a dissected VHS deck with the motor running super slowly, so you can hear all the pockmarks, the dropouts on the tape. It’s mono, too, which gives it something special. More people should record in mono these days." original article[0] and archive[1]
[0] https://www.nytimes.com/2013/06/12/arts/music/tomorrows-harv...
We had a guy, can't remember his name, might have been Mr Morrison? went round all the schools in his car with a 16mm projector, a screen, and a big box of shiny steel cans of film.
Draw all the curtains, pull all the desks back and line up the seats, sit and watch the movie. I can smell the film and the heat of the bulb on the sewing machine oiled projector parts, clicking escapement pulling film through, and the wibbly-wobbly wow and flutter soundtrack with crazy 70s synth soundtracks.
It's why I listen to such bloody awful music now, I guess.
There's a duplication company in Canada (they're easy to find...) that sells NOS, custom housed tapes, and all kinds of related production materials. There aren't many new options out there for working with cassette tapes, but if you can find a used deck in good shape (or there are new Tascam/TEAC machines) then you can have some real fun still. They also deal in some VHS.
Wikipedia: https://en.wikipedia.org/wiki/I_Am_Sitting_in_a_Room
Music has the right to children!