Click here by Barbara Schneider making 3-D leaf fiber art. Barbara makes giant leaves, from original scans, then makes free form bowls with them. I saw the episode one week too late to collect fall leaves, I wandered around and found several that were not totally brown and still had some color left to them.
I trimmed the leaf close to the stitching, and used Fray Check along the edges so the stitching would not unravel where I had trimmed it.
I have linked this with Nina-Marie's site "Off the Wall Friday" click on the badge in the right hand column to see some wonderful textile artists.