Here's the deal: I finally convinced my parents to let me build some stuff in the beck of my yard. There's about 1/3 of an acre of not-real-dense trees, and I have to stay within that area. The whole place is on a very slight downhill slope. Anyway, I need some ideas for stunts that are easy to build and pretty durable. Any suggestions? Keep in mind that I'm new to riding bridges and that kind of stuff. Could someone post some photos of their backyard stunts? Also, I need basic structural advice, i.e. how to make them nice and sturdy. Again, pictures would be greatly appreciated.