So I recently rented a scammed wow account of mine to a renting website. You can read about the website in the scam section.
What you do is secure yourself a scammed account.
Find a sight that will rent your account etc. This is the sight that works for me
Now they will ask what would you like in return Cash/Gold/Game Time Etc. It will not matter just pick one.
On the scammed account before you turn it over make one of the professions mining.
Give them the info etc and let them go at it for a good 8 hours or so. At this point in time go to account management change the pass. Now log onto the account and reap your profit. I have done this half a dozen times now and I have made over 4k g every time with the things they have mined.
Renting will always lead to a high chance of a ban so make sure to do this on a scammed account. Have fun and watch the gold flow in.