More to explore:
Cut glass bottle !
Cutting glass bottles
Now only to work out how to cut a wine bottle to do this....
Bottle Chain hanging WINE BOTTLE Lanterns.
Wine Bottle Lanterns
how to cut the bottom off a bottle -- to make LIGHTS!
Wine Bottle Candle Holder
Wine Bottle Light
Wine bottle candle holder
Dishfunctional Designs: Glass Bottles: Upcycled & Repurposed As Home Decor- Too Cool