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Aren`t these lampshades gorgeous? If you know how to crochet, you just make the shape you want or need. Maybe you can reuse a vintage doily.
Harden it and hang up.
Hardening can be done by soaking your crochet in sugar (I imagine that this one attracts insects), starch or wall paper glue. Personally, I`ve used plain diluted white glue in the past and it worked fine for me. You can also (source site`s idea) stretch your lampshade over another store-bought lampshade. That might work for me ... makes for easy removal for washing.
Please share ... what do you think? Would you use this idea in your home?
P.S. for some reason I can`t insert the source link below, so I`ll write it in here: https://deconome.wordpress.com/2012/09/04/labat-jour-en-crochet-a-faire-soi-meme/