Get the stuff you need! Dowel rod, something close to the thickness you want your wand to be. Sculpey enough to cover the whole wand. And tin foil!
wrap the dowel rod in tinfoil :)
Do another layer or two of tinfoil around the bottom for your wand handle.
shape the tip into how you want that to look with tinfoil
Start adding sculpey to the whole wand, molding it how you want it took look!
now paint and glaze the wand!
After this you can decorate it, I thought about adding a vine or something :)
Make sure it's how you want it to look, and then cook according to the sculpey instructions, keep an eye on it, mine started to smoke before time was up, but I left it in there for the full amount of time and everything was ok. Just be careful!