I found a neat down loadable book String Games on Vidyaonline.net that I want to share with you. I grew up practicing string craft and began teaching my children, as part of their home school arts and crafts lessons.
String games help develop hand-eye coordination, stimulate cognitive thinking and develops fine motor skills.
I plan to print the pages and fasten them in a sturdy folder. This could make a great stocking stuffer for your little thinkers as well.
The string crafts range from beginner to expert in difficulty.
There are tons of other books and resources to be found Vidyaonline.net