I picked these on my morning walk with my dog Jr. Some I pick mixture from grass to tress. Next time you're out on a walk, look high and low and see what you can pick out that may work.
I place them together in the arrangement to my liking. The I just wrap piece a tulle around the bottom and stitched a few time with needle and thread. It's simple and easy. Only took a few minutes to put together.
Here you have it pin to a mannequin. =)