A Handful of Hypertufa Hands: I had so much fun with these hypertufa hands - they're tricky to make, because they break so easily, but boy, are they effective. Some surgical gloves, some Portland cement and a bit of peat moss and perlite.
Any bonding agent will do, I have great results with this one. I got this at Home depot. I mix this 4 parts part bonding agent. Mix this in a separate container and use as needed. You cannot make a great leaf without it, don't skip this part.