I'm trying to design another water feature for my yard to utilize several pumps that I have left over from my first attempt at a pond. I want to build the feature into or onto a new fence that is cedar and copper. What I'm looking for is large (+/- 12") concave lightweight leaf shapes preferably copper that I can use as spillways or even something that I can use for a mold to shape them myself out of copper sheet. Any suggestions would be appreciated.