13 DIY Backyard Games and Play Structures

All those hours of playing Nerf hoops might finally add up to a useful skill when you bust out the pipe-ball game at your next garden party. Instead of shooting a foam basketball at a door-mounted hoop, though, you're arcing a tennis ball at a grouping of pipes—and the rebound is nasty. The angled ends and the varying heights of the pipes make it a game of skill that demands nothing less than the equivalent of a swish.

For full step-by-step instructions, see How to Build a Pipe-Ball Game. There's a How to Build a Pipe-Ball Game video, too.