Dupe. Use at own risk. Comes from gold-world-of-warcraft.com
Known to work in:More often than not, possibly wont work, nevertheless once these instance servers are certainly bugged then trade your items or gold to somebody then quickly enter the instance that are certainly bugged, such as the loading bar does not load) roughly a minute after, your character will be kicked out of the instance loading screen and roll your character back until earlier you walked into instance.
Deadmines
Maraudon
Scarlet Monestry (Any Instance)
Wailing Caverns