Paul, Here's the picture that someone mentioned, I think. This is a new bed built last Oct/November. We haven't observed whether or not the rays from a setting sun will gleam through these or not. They did on an older bed, but we don't have pictures of them handy. We didn't take time to remove the labels from the bottles, but a block wall covered in stone will likely replace the crossties and bottles pictured here. The bottles contribute only 3-4 inches of linear distance, so it takes many bottles.
Thanks,
David
