I searched "milling, peacebloom, inscription" before I made this thread, I couldnt find anything similar. Please don't tell me its a repost unless you can give me a link AT the same time you say its a repost, no "Repost, finding link now" because you never give the link.
So I was levelling my Inscription from scratch today, and I noticed the difference in price of Alabaster Pigment (Milled from Peacebloom, Silverleaf and Earthroot), and Peacebloom.
So I went and bought 8 stacks of Peacebloom at 96s each, this cost me ~7g36s in total.
I then milled all of this into Alabaster Pigments, and got roughly 4 stacks (a little more, not worth selling).
I then listed my 4 stacks of Alabaster Pigments at 9g50s each, 50s less than the current lowest price.
If only ONE of these sell, I've already broken even and made a little profit, the rest is all $$.
It takes less than an hour to level up to level 5, 10c to learn Inscription, and maybe 10 mins to beg for enough gold to do this.
Enjoy.