Well, as a alternative, you could use steel ice cubes. Or iced steel cubes... or sticed eel cubes... whatever...
But seriously, I use steel ice cubes for my whiskey on the rocks. I also don't like it if the drink gets diluted with water from ice cubes. Atmittedly, steel ice cubes are expensive (but reuseable of course) and not as effective as water ice - but they don't change the drink. You can find them on Amazon for $15 a dozen, or so.