There are many options out there when it comes to witch hazel toners, but I've become more interested in making my own to save money. Here is a recipe I found on eHow to make your own toner (find the entire article here):
1. Place the witch hazel bark and water in a saucepan. Allow the witch hazel bark to soak for half an hour.
If you're interested in learning more about witch hazel, this site has a ton of fascinating info on the history and uses of this wonderful plant.