Azshara's Veil 220g/stack??
Twilight Jasmine 70g/stack??
How is it impossible to farm a stack...use a twilight highlands profile mainly for herbalism and a Vash'jir profile, then find people to buy your Veil and Jasmine and give em like 125-150/stack and have them buy in mass quantities. I recently transferred to a high pop server bringing my gold and 5 bank tabs of mats, I spammed /2 WTS Ore IN BULK or /2 WTS Herbs IN BULK and after a day, I have a private buyer that buys all my Volatile Life, Jasmine, and Veil, another one that buys all of my gems, obsidium ore, pyrite ore, and elementium ore..and I am set. I have 2-3 accounts farming ~10-12 hours a day and put the mats in the guild bank and when I have some time to spare I CoD my mats to my buyers and by the time I log back on my bank alt to send more my money is in the mail ready to be spent! In all honest I (Or you) could make more money by spending time to make stuff, but I prefer just doing as little as possible for my gold. If you want to go with this route here are the best ways to do so:
1. Farm herbs and mill them and make inks to make cards to make decks to sell, either people need the trinkets for alts, or they are doing darkmoon faire rep (I believe there are mounts for them now)
2. Farm ore, prospect into gems and cut the gems to sell, with your extra green gems, transmute to blue gems to cut
3. Farm ore, prospect ore and turn the green and blue gems into jewelry to DE and sell the enchanting mats (Benefit of this is no posting cost on enchanting mats)
4. Farm herbs and make pots and flasks, at one point my big buisiness (Mainly in Wotlk) was to make a shit ton of flasks and sell them to big raiding guilds that would need a lot...cauldrons somewhat ruined that buisiness, but you might be able to find a guild interested in that...or you could just sell the flasks to buyers and on the AH
5. Smelt obsidium and elementium ore and make the cheapest green or blue legs (Require least amount of mats), craft the legs and then DE for more enchanting mats.
There are the tools for your tool kit...now go make something with them.