Do any of you remember “Pixie Stix”? a candy treat tasting similar to SweetTarts, a fruit-flavored & sweet/sour powder that came in a straw. The ends were folded tightly so you could keep it in your pocket all day, taking a hit every now & then when the teacher wasn’t looking.
How about Himalayan salt in a paper straw? You would just tap it into your mouth, then fold up the end again.
Turns out they still make Pixie Stix!..I think you could just take a straw, fill it with salt and carry your own Salt Stix in a pocket or purse.