This will depend on your servers economy, so it may not work for everyone, but I've used it to get my epic flyer on 2 characters now, so I know it works.
Basically you goto the AH, and search for any level 66+ blues, and see how much they are. Usually there are some Imbued Netherweave Robes, and some other junk that people throw on for like 10g.
The catch is, they disenchant in Large Prismatic Shards, which on my server go for around 17g, also they have a chance of disenchanting into Void Crystals, which you can either make 2 LPS out of, or sell the Voidy itself.
If you are not an enchanter, no worries...just say in /y, or trade: LF Enchanter to DE some high level blues, will tip PST.
You dont have to tip alot, just make sure the tip will still ensure you make a profit.
This will only work if Large Pris Shards sell for more than the blues you buy to DE, recently on my server the price of shards has dropped, and I'm not making as much of a profit, but it still works.
I know there are other posts here similar to this, but I have yet to encounter one exactly the same.
Thanks guys, and enjoy!
Edit - This works for lower levels too, its just requires the lower level to have enough gold to buy the items / provide a tip for the d/e'er