For those that dislike jamming regular sized ice cubes into their water bottles comes the Ice Sticks Tray, specifically designed for water bottles. These cubes fit perfect into the opening of your bottle.
For most people, a cold beverage is delightful, so ice cubes are the natural means of making that happen. Unfortunately, the water bottle and ice cube guys weren't able to coordinate, leaving us with years of frustration. These Ice Sticks fit perfectly into most traditional sized bottle openings. Each tray includes eight openings for the frozen sticks.
There is also no reason to stick to freezing water; try juice or beer. With regard to the latter, you can put beer sticks into your beer bottles! The possibilities are endless.