Elmhurst, IL is a pretty cool town because they support the arts, and offer a lot of art classes that you can take outside of school. I have a list of lots of different places that you can go to take classes or buy art supplies on my LINKS page here.
One set of classes that's pretty awesome is Teri Litavsky's pottery classes. They're at 101 N. Addison on the second floor (Suite 205) in Elmhurst. She's getting geared up for Spring classes right now, actually. In this class, you will learn hand-building techniques to make some unique pieces that will be glazed after firing. They're on Friday evenings from 4:00 to 5:30. The cost is $90 for the class, but includes all tools, clay, glaze, and firings. You can even sign up for private group lessons if you have a group of 3 or more!
If you're interested, I have some sign up forms here at school. Otherwise, you can download and print out your own form here. Alternatively, you can email Teri Litavsky herself for more info.