I adore bottle trees.  I’ve seen broken glass used for gorgeous art work.  Old bottles can be made into drinking glasses and vases with a glass cutter.

But this … this is perhaps the pretties thing I’ve seen made from empty bottles.

To make a bottle fence or wall, simply drill a hole in each bottle and run a rebar through it. Can you imagine how stunning it would be when the sun goes through it? Hopefully the reflection won’t set an ant on fire!