Ebay rocks! I once sold an empty 2 liter of Dr. Pepper for $2.75US ! the shipping came to $4.25CA but buyer paid a total of $7.00US so they wouldn't have to figure out the exchange rate.
18 cent listing turned to 7 big ones in the ol paypal acct. The most work I had to do was stomp on the bottle til it was small enough to ship cheap, put it in bag tape it shut and address it. It went to the post ofice on my regular trip. 10 minutes, $7.00US, not as much as I'd like to make but not bad either!!