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by _a_a_a_ 1248 days ago
Huh! And light weight. Actually makes sense too.

The things you learn here...

Incidentally, reminded me, I'd heard opuntia spines (https://en.wikipedia.org/wiki/Opuntia AKA prickly pear) were used for the needles waaaay back. Can't find a ref but heard it on a TV program. FYI.

Edit: can't play this but see if this is informative https://www.youtube.com/watch?v=wxuPDTlIofY "Making Phonograph Needles from a Cactus"