400g per hour with mining/jc

You need: Normal Flying Mount for 400g per hour. Mining 375, JC 375

1) Force your friend to make Jewelcrafting skill 375
2) Go to outland, mount yourself and go find Adamantite Ores
3) Log in to your friend's account (you must have got 2 WoWs opened) and trade him Adamantite Ores.
4) Prospect that ores and trade items from ores to your char (and adamantites what left too)
5) Put that items on auction on smallest price
6) Put up on auction between 2-3 characters with one slightly lower then the others.

With an Epic mount the gold can increase slightly per hour
http://www.multiplayerstrategies.com/ms/index.cfm?page=topic&forumid=63&topicID=38082&categoryid=20