So my friend really loves whiskey. (No seriously, it's not me!)
I've seen these Whiskey Rocks for sale many times before -- expensive pieces of rock designed to keep your drink cold. They are made of soapstone, a very soft stone that is non-porous, odorless and tasteless - put them in the freezer and they will keep your drink nice and cold without diluting it like ice cubes! The problem? They are like $30 for a set! Ridiculous! Here's how I made my own...
I just happened to have a big chunk of soap stone kicking around.
Used to carve soapstone when I was younger
Make a nice slice...
Despite it being so soft... it took a long time to saw through!
Few more cuts and I have the rough shapes done.
They turn dark when wet -- just have to throw them in the freezer now!