Livinwright Farm
Goat Fancier
peppermint is a natural stomach soother... so that may be what they like about it... aside from the mouth cooling action 
You could also mix in some vanilla(3 of my goats LOVE anything that smells of vanilla), or cinnamon, or mashed berry(strawberry, blueberry or raspberry).
You could also mix in some vanilla(3 of my goats LOVE anything that smells of vanilla), or cinnamon, or mashed berry(strawberry, blueberry or raspberry).