We needed a shade for the foals this summer and my handyman offered to build one that wouldn't be very expensive. We bought some wood (actually young trees that had been cut and dried) and some fabric that is used to make shades for nurseries. First we dug holes in the center of a donut shaped feeding bin in the paddock and around the bin to place support poles.
Then we used some lighter wood to build the framework for the fabric making a sort of tent. The entire structure was tied together out of palm rope that was soaked and then wrapped around the wood to hold it in place. If you ever go to the Solar Boat Museum, you will see the same construction technique of rope and wood used to construct the pharoah's solar boat...but much nicer of course.