This one is very simple and has been around for a long time. I believe that string games exist in just about every culture. Really all you need is a piece of string, but this set is nice because it comes with a sturdy string as well as a book of instructions.
The instructions are simply presented and well-illustrated so that children can learn the two person Cat’s Cradle game as well as how to make string-figures like Witch’s Broom, Eiffel Tower, and Jacob’s Ladder.
This makes a great travel game (it is easy to pack a string!) or stocking stuffer. My 6 year-old loved it and has taught her friends how to play. It brought back memories for me too. I discovered that I can still remember how to make Cat’s Whiskers after 30+ years!
This second book, is nice to have too: