These are so pretty and I bet they work great too! There isn’t a tutorial on how to make lace curtain 
screens at the blog 365 Saker but there is a lot of other pretty ideas and photos. I think I will be on the look out for lace curtains on my next trips to the thrift store. I imagine these are as simple to make as stretching canvas on a frame.
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Have you read?
How to make matchbook style packaging for all sorts of tiny things
I love vintage matchbooks and their graphics, they are such a cool little bit of history. Even the concept of a matchbook is dated as there isn’t smoking in public places. So repurposing the packaging format to hold all sorts of tiny things is such a great idea. Pop on over to the blog Reading My Tea Leaves to see all sorts of things you can package in a matchbook and how to make them.
I made some folding lace screens inspired by this very picture a few years ago! http://www.dreamalittlebigger.com/post/folding-lace-window-screens.html