I haven't seen this combination posted before, but my apologies if it has.
Ok basically this is the classic turtle mount scam, with a fake emailer stuck in and a temporairly stealing of someone elses account. (Yea alot of it's common sense but for the less experianced it may be helpfull).
Also this is my first tutorial so please don't be too harsh although constructive criticism is welcomed 
Step 1- Getting the Tools
First of all, you do not want to get banned (Obviously

). The easiest way to not get banned is to simply not use any of
your accounts. So we're going to use what I see as one of the most efficient ways of getting someone elses account quickly and easily. That is pretending to be a chinese gold seller who wants to rent accounts.
First of all you want to pick any gold selling website that doesn't have a reputation for ripping it's customers off. Then your going to make an msn name along the lines of (Using wowpl) wowplcustomerserv (at hotmail, can't post links including emails :P) anything that looks like a gold selling customer service msn.
Next look for anyone selling world of warcraft accounts on some of the popular trading forums, (Such as markeedragon). Don't worry about what the character they are selling actually is, although the worse the gear the higher the success rate is what I usually see. Add this person on your newly created msn.
Now say something such as the following to the person
Hi there sir I work for [Enter site here]. Do you have a WoW account you would like to rent to us? We are able to offer between 200g and 350g a day depending on the character, or we can pay usd or even power level a character for you!
From then on just your common sense to ensure control of the account for at least 24 hour, act like your serious about renting, ask for the armoury etc.
Step 2 - Turtle Mount Scam
Now log onto the account and go onto the realm you wish to get some gold on. Create any sort of character, it doesn't really make any difference. Run to the closest city and stand near the mailbox.
In the trade channel say something similar to the following
Due to the high volume of gold on this realm, Blizzard will give a code for a Swift Spectral Tiger mount in exchange for (Insert amount of gold you think is relevant here, 1.5k gold isn't bad.)
You'll get piles of messages accusing you of being a scammer. Tell the people messaging you that you can proove your position by sending them an email from noreply at blizzard dot com (Under 3 posts so can't post email). Once they give you their email go to a fake emailer (Will post one once I get 3 posts :P). And send them from noreply at Blizzard dot com something along the lines of
Hello sir, this email is to verify that the character[insert character name]
on the realm [realm] is a customer support representitive at Blizzard.
We are giving out Swift Spectral Tigers in an attempt to lower the volume of gold on your realm.
Blizzard Entertainment Europe
Account Administration Team
TSA 60 001
78143 Vélizy Villacoublay Cedex France
Regards,
Account Administration Team
Blizzard Entertainment Europe
If they still don't believe you just skip and move on.
Now send the gold to another character, and delete and remake the scamming character. In the message with the gold say something like Happy Birthday! so if Blizzard contact you, you can say that your friend gave you it for your birthday :S
FAQ
When pretending to be a renter they ask me why my email isn't listed on the site.
I usually say that the email on the site is used for a customer contacting us and the email I am on now is used for advertising and contacting potential customers.