I like them, but here is a thought. What about adding solar garden lights to the poles? They would provide light when it is dark. I know that if you used these jars over the solar lights it would probably diminish the amount of solar input into the lights. Now I want to do that experiment.
One way that I recycle jars is to melt down candles that I get for free, and make candles in them. A lid on top protects them when I am storing these candles. I prefer shorter and wider jars for that. We get salsa and cheese dip for corn chips in a jar that I prefer. I've suggested to my daughter that we could spray and/or decorate the tops and give these for Christmas gifts at our annual Christmas eve open house for people who have no family in the area. I collect useful and practical items like lighters, toothbrushes, small candles, gum, mints, chocolate for them.
We clean and use empty spice bottles for small vases. I like to have lots of cutting flowers growing. This was a special treat during the pandemic, dropping off vases of flowers on people's porches, giving some cheer especially during lockdown time. In return, people now give me all varieties of vases to keep this going, even past the pandemic. We were just going through those vases yesterday and picking flowers for daughter's house.
Made these to cover the metal poles holding the fence. Useful - no. Decorative- yes! A little messy with the glue gun but chuffed with these. Making more. 
