Ok so I am kind of well geared. I am a human rogue and I’m speceed combat dags, which is a bad choice for this, I should be combat swords or something but anyways.
I also have imp sap. Go to the crypts instance in auchdoun and stealth to the very end of the second room.

My hunter collecting Bloodvine and voodoo dolls from Zul'gurub(easily doable naked).
I collect a total of 7 voodoo piles and how ever many herbs i find. This particular run i got 5 different voodoo dolls(10-15g) and 3 bloodvine(20-25g).
My record to this day is 6 bloodvine from one run :). Of course the prices depend on the server, my server is rather low i'd say, and they sell pretty fast.

The best run I have had I got the Fiery Enchant (35g), and the Ace of Elementals (300g+) for about 10 minutes time in the instance. Those prices are on my server.

My main is a rogue so this is written from a rogue point of view, but maybe you could do it with a druid?

Follow the steps to solo Plugger for the Barman Shanker.

Tired of Tyr's Hand? Want to do something Chinese Farmers can't do? Try solo bosses in DM East. You do need (dis)enchanting to be able to make the most of it, but read on.

Resetting an instance:

Invite someone to your party, leave party, log out during the countdown to Iron Forge and log back in, you will not only reset the instance but also be teleported back to the start of the instance.

The target is Razorfen Downs located in the southern barrens, this instance is for about levels 35-45.

To do this run you need to be a rogue level 60 (maybe a bit below) and you also need to have enchanting
When you enter the instance go into stealth and follow the map outlined (it may be a bit incorrect but u get the idea, just get to the last boss)

http://img295.imageshack.us/my.php?image=86full4fy.jpg