Maybe quite similar to ebay collectables and ebay memorabilia, seas-shells art print are a unique sellers proposition of consideration. There is an online video that shows you how to do it sea-shells art print.
It shows a very cool way to profit on eBay using F-R-E-E information available in the public domain. It doesn't cost you anything, just time to research and re-package and you are ready to go. An interesting and easy way for ebay-ing.
If you'll like to have more of such related ebay hidden secrets, you can read my earlier post on the Ebay Airbrushing How-To as well.