Electroforming! This is the process I use to make many of my free-form copper pieces. When I first started experimenting with this process I ran into SO many problems and couldn't seem to find much information about it. Now that I feel like I know what I'm doing, for the most part, I thought I would share what I've learned with whomever wants to read.
Covering leaves or other items in metal in a process called electroplating can turn a fragile leaf into something that will last for many years. The electroplated leaves are beautiful and decorative, and can be used as jewelry also.