Simply use the same steps for a big one only with a stick. Make it no longer that your hand.
Use a limb to carve out the shape you want (curvy or perfectly straight). Some people start by making a square and craving it down so that it's circular. Now decide where the handle will start. Some people make the distinction by making it fatter than the rest of the wand which as we all know, will dwindle to a point. Then you can decorate it however you wish. I used ribbons to represent the elements and wrapped them all around the hand (hot gluing them down.)