Agree! To my knowledge, this hasn't been done before on a large scale. And I know my aunt would love this.
I think the challenge will be creating a "discreet" tactile label that's large enough for all the braille dots needed to spell out the item description. Although, just one descriptor, like item color, might be manageable.
Now if you really want to be creative, think of a way to include a tactile audio label with a "sensor" that can be read by a device (ideally any mobile phone) which plays the description back. Something along the lines of
$1.
Now *that* would be cool AND a novel accessibility feature, u/nattieluvr