I added this picture from Hotel Deseo in Mexico on my Facebook page yesterday, I thought this was such a beautiful way to get some shadow and making a cozy corner in your garden.
But it would also be easy to do at home. By using some rope and bamboo, or even by making a bamboo frame only and attach it to the ceiling on four points. Last years summer I made some pictures of an installation like that at MERCI. Hope it will give you some inspiration on how to make something like this for your own home or garden.
Pictures MERCI: (C) Vosgesparis