With a little scrap wood and some thin plywood you can build a wall ball maze game for hours of enjoyment. At the link you can read all about the game as well as follow the free plans to build your own.
Now there can be no cheating when you build this fun outdoor scoreboard. You just need a piece of plywood and a piece of dowel to built it. Follow along at the link to see how it was dine.
By using sheet metal for the back and magnets in the playing pieces, you now have a magnetic game that you can hang up when not in use. Follow along at the link and build your own tic tac toe game.
Build your own backyard ring toss game and create fun for the whole family. Free instructions to build this project at the link.