Hi everyone.
A few hours ago I was exploring around nagrand to filll up my game map hehe, and I found this place with Twilight Serpents.
Twilight Serpents drop valuable gray items which sell for a decent amount when stacked, but you can also skin them for Cobra Scales.
Unlike the cobras in Shadowmoon Valley, which have a higher droprate, here in nagrand there are no other mobs that you need to kill other than the cobras, while in shadowmoon valley you have to kill the nagas, unless your a rogue.
I have been getting 2 cobra scales / 10 minutes, in addition to a big amount of knothide leather and knothide leather scraps.
What im saying is...on the server that im on, one cobra scale goes for 35 gold a piece, and heavy knothide leather goes for around 5 gold a piece.
Using all of the knothide leather and knothide leather scraps that you loot, you can easily make a nice amount of heavy knothide leather.
So without including in the leather / gray items / greens that occasionally drop,
While skinning for an hour in this area, you can get around 12 cobra scales or more.
12 cobra scales * 30 gold = 360g or more per hour, just from the scales, not including leather/grays/greens.
Enjoy.