It was made by Love Street Cakes:
I suspect the design was hand painted and piped, but you can google henna stencils or mehndi stencils and see what's out there.
Thank you!!! I have been searching and searching to whom make the cake. Now with pinterest, you never know who the original artist is.
There are several ways to find the sources of pictures. I use Google Images. See this:
wow! thanks for that tidbit. I had no idea..haha