I teach kdg...I second what someone earlier suggested...hand sanitizer, chap stick, hard candies or mints, stickers, pencils, cute binder clips, post it notes, etc. You are very kind to do this for your grand kids' teachers! I am retiring at the end of this year and our only grandchild (so far) is only 14 months old but I am taking notes from all you wonderful grammie's out there....I hope to be as wonderful, also!