First of all tune your hearth stone into an area that has a horde/alliance auction house. Then fly to Gadgetzan, Tanaris then fly to Cenarion Hold. Then walk to the back of Un'Goro Crater.
There you can do two things, either farm for Rugged Leather off all the beasts there.
Or my favorite the Devilsaur-with the Devilsaur you can sell here skin in stacks of 10 and make a large sum of money.
Usually I can sell a stack of 10 for about 30-40g and it takes me an hour to an hour and a half.
There is 6 Devilsaur spawn points, you must look at there patrol paths.
Once you have done this a few times you remeber where they spawn and usually after you kill all four of them another one spawns and the cycle just keeps going.
Personally I solo these guys with my 60 Hunter considering they are lvl 52-56 elites.
You must be a skinner, and you must do enough dps fast enough not to die, or have enough armor so you deal dps slower yet stay alive.
In less than a week I have made over 1500g. So I hope this helps, and if it does could you please reply back if you need any additional info or if you are stumped on something!
Tags: Devilsaur, farming, Gold