Developmentally appropriate risk-taking is essential to developing an understanding of our bodies and all of the amazing things that they can do.
Unique kids rooms | DIY Kids Rooms Tire Teeter Totter
pvc piping instrument...
DIY Turn PVC pipes into a playground musical instrument. I wish this had the instructions with it, but I might be able to figure it out. This might even work as a service learning project for my daughters' school.
Wobble Step Bridge -- several cool ideas for an activity/agility trail from a company in Scotland