Glass is supposedly one of the most expensive things to recycle, I think because you would have to get it so hot to break it down. Above, I decided to reuse rather than recycle some beer bottles as a flower bed border. It was actually remarkably easy to do with a rubber mallet after a hard rain. The only cinch in my plans was the proliferation of tree roots, but they just forced me to put cool curves in the border. I planted hostas and coral bells in this semi-shady new bed, and I love how it looks!
Of course, you can also reuse glass bottles for your bottle tree, but I don't really want all brown Abita bottles on my bottle tree!