I like my gin with just ice. And of course the ice dilutes the gin.
I've been musing over reusable ice cubes for some time. We've had to lash out on a new kettle, and when I found a set for very little money on the same website, I added them to the order. The order arrived today, so this evening was my first opportunity to try them out. Definitely an improvement. Great for sitting in front of the fire this damp evening.