video Vodka bottle embeded in ice
don't like warm vodka - embed the entire bottle in ice - use an empty coke/etc. bottle place the vodka bottle inside, fill with water, tape up and freeze - will definatelly keep the bottle cold before you finish it at the party
Maybe combine it with this instructable:
http://www.instructables.com/id/The-Ice-Bulb/?ALLSTEPS
and make a glowing iced vodka bottle.
Of course, if the only purpose is to keep your vodka cold, just putting the the vodka bottle in the freezer without the ice layer will work too...