How do you get the lines or wrinkles out of ribbon that has been on cardboard not a roll or re-using a piece of ribbon that was a bow?
— jezzabelle18, CO on May 19, 2011

There is a tool from American Crafts called the Ribbon Iron. Here's a link to it on the Annex: http://www.archiversannex.com/Ribbon-Iron--44005/default.aspx?PageID=21&CategoryID=17&ProductID=15669&SPG=2&ItemID=35087&RootCatCode=11250

Hope this helps!