Interesting...I also use a Maxpedition bottle holder as the basis of what i call my NCOT kit (Nice Cup of Tea). I nest a Gatorade bottle and a Titanium mug, along with a very efficient windshield and a Trangia stove, plus the items for tea. it makes a nice compact unit and it readily produces that all important nice cup of tea.

The bottle holder I use is the one sized to hold a nalgene bottle with a pocket on the side and acres of MOLLE webbing all over.

I need to post pictures one of these days....