I have a glass of whisk(e)y with ice cubes and all in my free stuff. Feel free to take a look at the shader I used (it was some years ago so I can't remember what it was like, but I liked the look) and grab that if it's usable :)

(Due to the angle of the render (to show the ice cubes) it's hard to see the colour of the drink. But IIRC it looked pretty nice)

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.