Bob what do you want to do with them?
Ive seen garden boarders, bottles glued to each other to form a fence or yard art. Some bottles are the same direction others go up then down.
Move seen people hang them
from trees like sun catchers.
I hope you share what you dream up!
I've seen them used as vases and lamps. I've also seen people paint flowers on them and stencil them with numbers. I've also seen a lot of people make bottle trees, some with lights in them, some without. https://www.hometalk.com/556301/diy-bottle-tree