Kids don't do so hot, eating out of bags. Need something little more durable, little less spilly, little less hole-pokey-leaky.

Pika - MSDS sheet for this particular brand lists milled walnut shells with no additives; also listed as a pet-food filler and natural cosmetic additive (exfoliant), among other things. Also finding many similiar items made from milled fruit pits.

Jimshaw - I have not found any scrubbies for dry use with no water, if you have a particular brand to recommend I will happily try it.

Rubbing soil into your cooking gear is just begging for ringworm.