I made a different verison of great beer holster by Eric T. It is made to fit 0,5l bottles with diameter of 68mm (classic European bottle, at least in the Czech Republic), I also splitted it to 2 parts for better stiffness and easier printing. 

You will need 4 additional M3x10 screws to attach the belt holder, it is easy to make another type of holder for another use. I added measurements between the four holes in the images.

I printed it from PLA with 0,25mm layer height, 3 perimeters and 20% infill and it works just fine.

Enjoy!