Cool booze

There is a very old problem of keeping your booze cold in parties. Now there seems to be a solution to that. The Ice Jacket.
It keeps your beverage cool in a cool way. The polypropylene Ice Jacket has a base plus a sleeve around the bottle. You fill the Jacket with water and put in the freezer with the liquor, then few hours later it is ready with a thick coating of ice that will last as long as your party (or bottle).

Ice jacket

The Ice Jacket fits most usual liquor bottles

ice jacket

Here is how it is done