Time to contribute
I made this all by myself, and I hope it is useful to you in any way.
Requirements: Being tailor or having a tailor friend.
Item you will make: Azure spellthread or Sapphire, wich one you prefer. I won't explain the sapphire though.
This also depends on your prices of the AH.
The mats of azure spellthread are: 2 crystallized fire, 1 iceweb spider silk and 3 eternium threads. It's the best if you farm the crystallized fire. You can farm them in wintergrasp or in the cavern in Stormpeaks near the temple of life. You can chose to buy the spider silk, since it is really cheap. IF you want to farm it, you can get it in Zul'Drak near the argent stand.
Now the point of this is, Azure spellthread goes for 25-50g each. You can make some or alot of profit by selling them. It is not as good as mining or anything, but if you are tailor this might be great for you!
Hope you enjoyed it!
Tell me if you know better places etc and I will edit it