Do It Yourself Amusement Park

Looking for something to do?  Suggest to the kids to make their own amusement park.  My children invented the games above: twisty swing, sled carry and the roller rider.  They created their own fake tickets to sell and gave the younger kids rides all afternoon.  In addition, they opened up a snack bar with signature drinks (lemonade and sunny D was popular with a splash of seltzer).  Some nice free outdoor fun created by kids when left alone.