Offer to make a quilt out of the clothing of the grandma, if you can get some of the clothes. It is a beautiful and meaningful gift, and will be a wonderful gesture. If you are lucky enough to get some clothes with pockets on them, sometimes just putting your hand into the pocket that your loved one had their hand in is a meaningful gesture, so if you do this, be sure to keep a pocket on the quilt.

There are books designed especially for children who may be experiencing grief. Compassion books has a complete section with children’s grief books. Maybe put together a care package for each girl with things they would like such as toys, dolls, etc. and sneak in one of these books. They even have coloring books dealing with grief.