One could find the shade cloth at The Home Depot and construct them with PVC.

Amazon has variety of somewhat more elaborate shades. One described as "Impact Canopy Side Wall Kit, Mesh Screen Zippered Wall Panels for 10x10 Instant Pop Up Tent Canopies, Walls Only, White Impact Canopy Side Wall Kit, Mesh Screen Zippered Wall Panels for 10x10 Instant…"

Perhaps Amazon has simpler shades too and I did not find them.

Thank you very much. I thought those garden shades were a genius idea. I would love to buy a few for around the yard. I'm sure there's a business here for someone with these skills - there is absolutely nothing like these being sold anywhere online or in stores in my area. Don

Try this link.

https://www.gardenweb.com/discussions/2165718/homemade-shade-for-my-baking-sfg-garden#n=10

Yes those are the ones I'd love to purchase but have no way of contacting the person who made those. Her posting is about nine years old. Any ideas on how to contact this person, or where to buy something like this? Thank you very much! Don

I’d love to buy some too. Has anyone had any luck since posting?