Not sure if this will work, but it's worth a shot...
***If you're not willing to pay much for this scam (you'll only have to pay once) don't do it***
1) Find an epic item and a poor quality item that have the same icon (you'll probably have to buy the epic)
2) In Trade Channel do "WTS [Epic]! [Cheap Price Here]! PST!"
3) Let the person come to you and open a trade.
4) Put in your Epic Item and make sure they put in there money.
5) When they go to trade quickly swap the epic for the poor quality item and say "Sorry, pressed the wrong button", because you canceled the trade.
6) Trade with the person!
This works 50% of the time and you'll usually have to log out right after you trade. This works good if you create a level 1 to trade the stuff, he mails the money to your main and you delete him. Enjoy!