This is the mount we created ourselves for holding our camera on a pipe. It is a sad example of a mount, it was a fire hazard, shaky and hard to put up. Safety doesn't matter to us however.
It's basically made of of a 2X4 that was cut up in 4's. We then mounted a smaller piece on top of another which was connected with a 1/4" x 6" screw and some washers, that would also screw into our camera.
Now that we made the bed for the camera, the actual attachment to the pipe came from a c-clamp that was screwed into the bottom portion of the mount.
Finally we kept the whole thing steady using a string that wrapped around our camera and mount. Also there needed to be a safety cable around the camera just in case.