Is this possible?

Yes, the two characters must be on DIFFERENT accounts.

If your doing a world to same world transfer then there's a trade button and two computers handy or ask your dearest friend to give it your other character.

But if your doing two different worlds, heres the guide.

1. Charge the account your RECEIVING the stuff on with NX.
2. Go to Wanted and click "List Wanted" I think in the right hand corner and type in what you want EXACTLY and you can put whatever you want but in the price put 9!
3. Go on your other character and find that Wanted item and click "Offer" and offer the one you have.
4. Go on the other and Click "Accept Offer".

There you go repeat process.

Thanks. I'm gonna try this when I make a pirate in Khaini.