What nice pix and info
The favorite edging I ever had was soda and beer bottles, it looked so old timey and I remember my GF had a couple of beds surrounded by them. When I remembered his beds, I put out the word to my neighbors I wanted bottles, I had them in short order. One neighbor that I had known for years but never knew how much he drank till he started bringing me beer bottles,
They were buried halfway, upside down and a few right side up and the wind made those hum and whistle sometimes
I had to remove them after having them for years when my DH weed eated around them once and broke several and then I worried about future grand kids after that