Budget stocking stuffers for Grandma?

[digitalsiren]

Lip balm, razors, shaving foam, have them each make her an ornament (there are plenty of ideas on Pinterest), hair ties if she uses them, and a new toothbrush with toothpaste (sneak a peek in her bathroom for the kind she prefers).
Ask each child one thing they would like to do alone with grandma and give her tickets to use when she would like to "redeem" her special day out with them.
Since she is computer saavy, maybe a Kiva gift card (I know you said she's not into gift cards, but this is different and it is a gift that keeps on giving).