Parametric Bottle Holder for Fridge

I wanted to organize some 2L soda bottles and some beer bottles in my refrigerator.  I created this file to be customizable for various size bottles, configurations (such as the 2x2 setup I printed but can set to any number horizontally or vertically), and designs (change the $fn to get different shape cutouts - I used hexagons but triangles/pentagons/etc are easily configured).