40-50k per hour (requires rogue and monk)

Ok so you will be farming heavy junkboxes which sell on my realm from 250-300g each

using this method you can get over 200 per hour, boring but good money during darkmoon fair.

head to this location on greengill coast and lay down a statue where I showed in screenshot

from there just pickpocket each of the murlocs until you have them all, aoe down and wait for next wave. about a 10 sec respawn.

You can even do this with two trial characters to make money