I've done this in the past and had a blast! You pay a $7 studio fee + the cost of the piece you're painting when you get there, paint it at the studio, they fire it and then you can pick it up in about a week or so. Typically they have pieces anywhere from $3 on up.
We have to call and make a reservation to guarantee space and especially if we have a bigger group. Studio hours on Saturdays are 11-9 so I figured an afternoon would be best. Let's have some painting fun!