Responding to a demand expressed by the country's bartenders, a Japanese company has developed a mold for making seamless ice spheres.
The spherical shape has a lower ratio of surface area to volume, so the ice melts more slowly, thereby diluting your drink less. These ice spheres would be great for iced green tea, too.
At least, that's what I thought until I saw that the prices for these ice molds start at around $800. I think I'll wait for the price to come down.
Hey, that's cool! [Get it?]