Whether or not an empty wine bottle is transparent, it can make a great bottle light! Mark where you want the holes to be with some masking tape, drill, rinse the bottle, then stuff Christmas lights through the holes you drilled. (via Wit and Whistle)
How To Easily Cut The Bottom Off A Wine Bottle -- (I would try this outside first. Don't know if there are any small fractures in the bottle when the 2 pieces split in the cold water. Interesting idea and definitely worth a try.