Ok first off you NEED wowinfinity or a similar speed/fly/noclip hack.
there is a ban chance but only if your an idiot really.
Also as alliance i know only the alliance version of this, though the principal is pretty easy to put into the horde side too.
Now there is a NPC named Neil Ramstein at the entrance to the Ironforge Brew fest completing his quest to race rams and gather the kegs of booze will open the option to run back and forth for a further 2 tokens per run.
Simple accept the option so you get a ram, run off where no1 can see you, turn on superfly and noclip get underground, speed hack to underneath the guy who gives you the kegs in Kharanos, run straight back, get your token. repeat until you have enough =)
Before you go saying "hacks it is a guide" it is a guide you get the tools you use them. if there is a rule somewhere stating not to place it in a guide ii apologize but there was no mention in the stickies against it.