I have been teaching a 3 part cake decorating class at Orson Gygi the past couple of years. We have had a lot of fun! We go over making fondant, frosting and covering a cake and some fun basic decorating details for the outside. Please visit http://www.gygi.com/ for a complete schedule and to sign up for the classes. I am teaching a topsy turvy cake class there as well. We will be making a fun, whimsical cake.
Please let me know if you have any other questions!