Noughts and Crosses
In UK we call this game Noughts and Crosses but it is known all over the world.
This large-sized version is great fun as it can be used as an afghan or as a floor game. The pieces are large so you could make a bag to store them and use it as a cushion.
Whenever we have taken this game to Maths and Science Fairs, it has been amazingly popular with the most unlikely-looking teenagers. The reaction is always the same: first they use the playing pieces as frisbees then quickly settle down to organise games and tournaments. Younger children (and adults) also love it.
The pattern is also available in Afghan Games, along with
Snakes & Ladders