I think hand tools would be fun, well interesting anyway. If a machining route is needed then my two pen'orth would go like this:- Using a template rout the center shape. If a cutter can be found to match the bevel ( is it flat or curved? ), use a template to shape the inside of one leaf, rotate and repeat. The points of the outer shapes are the tricky bits, either 3D routing or a careful chip carving exercise.
Have fun.
xy