A good way to chill a warm bottle of beer or soda is to spin it rapidly in ice water. Spinning disrupts the boundary layers between the bottle's surfaces, contents and surrounding ice water, facilitating heat transfer.  CoolSpin is designed  to latch onto a standard bottle cap (aka a "21 tooth crown cork"). Simply snap it onto the bottle cap, lower the bottle into a tall container loaded with plenty of ice and enough water to float the ice. Chuck the axel into a drill and spin it for a minute or two. Note that this thing will spin freely without rotating the bottle unless you pull up on it slightly to let the weight of the bottle and its contents force the teeth of the bottle cap to engage the interior rim of the CoolSpin.

This prints without supports. I used 50% infill. The axel is a 1/4" x 2" flathead machine screw with a matching washer and nut. A lock washer is also a good idea.

Hopefully you won't need to use this thing too often. The teeth of the bottle cap are quite sharp and abrasive so there will be some damage to the CoolSpin over time. On the other hand, it only takes a half hour to print, so it's easily replaced if necessary. 

Note: CoolSpin is designed to work with standard 26 mm interior dimension (pry-off) bottle caps. I've read that some of the "twist off" caps are different diameters and may not fit. That said, this design should be scalable. If your bottle is capped with a "twist off" cap, be sure to spin the bottle in the opposite direction of the "twist off" threading.

Here's a short, poorly done video: https://youtu.be/XQSuvS7Z0MQ