How about bookmark pencil holders if they are school age. They can be made out of scraps in cute prints that little girls would like. They might also like some type of bow or otherwise to put in their hair. Not sure how old these children are so just throwing out these ideas. I am sure a search on Goodle will give you additional ideas. Enjoy your visit with them. How about Barbie doll clothes if they have Barbies that they love. Even a simple blanket to wrap dolly.