sell it as a dewat or send it with no return address
as long as you are out of there borders you shouldnt have a problem unless you are breaking a postal law which may or may not be circumvented by sending it ups.
I got a gun in the mail and they made sure to beat the barrel into the ground untill it broke thru the cardboard (I guess so they could prove to there boss that the suspicion of it being a gun was correct) because you can't send a gun thru usps. It was an antique so it was not classified as a gun so I didn't get in trouble.
Needless to say whenever I get a package from USPS I wait for the knock and open the door really quick and yell WHAT.
This is the stupidest advice in this thread. We do not condone advising illegal transactions. If it is against the law, it is against the law, don't be stupid.
Also, it is not against the law to ship a gun through the USPS. Not sure what yelling what to the postman is supposed to do......