[nsxwolf]

The glass thermometer in 2022 seems a bit like using a 3.5" floppy disk as a save icon, and I don't think it would show up very well on a tiny clothing tag.

[smegsicle]

"trying to come up with a better save symbol than a floppy disk is like trying to come up with a better temperature symbol than a mercury thermometer"

i agree with this part of your premise (and also that a thermometer would be hard to read on a tiny tag)