This is my first attempt at customizing a in-game object that is not available in either buy mode or build mode so I hope that it works for everyone. I couldn't imagine it not working because it's a base game object and all I did was remove everything that wasn't the texture files and the file that controlled the colour of the milk. I didn't know how to change the milk colour so I just made it transparent so really all you see is the bottle colour and the milk bottle topper.
Goodbye green alien milk, you made no sense and now you are replaced, hopefully for good.
Also because this isn't TSR it's free!
If you have issues please don't hesitate to tell me about them. I'm new at this but hopefully I'll be able to help.
edited: because it's "I'm new not knew"