Re: amazing mehndi
I’m a mehndi artist by profession, and everything I do is from scratch. I don’t see how someone could transfer designs like that, given that so many peoples arms are different sizes.
However, I have used a watercolor pencil on designs that demand symmetry (not on hands though).
In this photo I used watercolor pencil (the orange dotted line), to mark the symmetry. http://www.flickr.com/photos/20286098@N05/2460082777/