In our Gruops recent camp in Camkoru Ankara Turkey Group leader Zeynep and 2 halping leaders made a game field resenbling table top football field. Three teams organized. Regular football rules observed as much as possible. Whenever they have arguments objectibns thy dissusswd and added new  rules and all games finished in peace. We posted a powerpoint  story here and photos too There is many different designs but this one all equipment and tools fits in a madium size barrel and transportation is possible  in a small bus the Mümain camp story numger was 1380 in project section