Shade Sails are available via major U.S dealers like Home Depot, Lowes and Target. Prices range from $40 to $350, depending on size...will be buying this....
how to make a shade sail - Google Search
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I don't need to cover the whole yard but I like all the colors. New Coolaroo Shade Sails for your yard! « Westwood Gardens Blog
Coolaroo Shade Sail Rectangle 5 x 3m Charcoal $186
Shade Sails are a great alternative to a pergola or other patio structures.
Coolaroo Triangle Shade Sail 16 Feet 5 Inches with Hardware Kit, Ocean Blue$100.79: www.amazon.com/Coolaroo-Triangle-Shade-Inches-Hardware/dp/B001AQUBCU/?tag=sure9600pneun-20
Shade Sail | Solutions
Coolaroo Triangle Shade Cover | Remodelista