I didn't have green leather, but I had a beige colored scrap that was sorta ugly on the finished side but super soft and shiny on the other. I've been wanting to use it for something for a while, but I just couldn't get over the color :P I finally decided to try staining it with some green food coloring... and it worked! it's exactly the green I wanted :)
I sewed the leaves together on my sewing machine since the leather wasn't too heavy.
I think next time I'll put a faux button on and use a snap so I don't wear the button hole out.