The first step in getting yourself good and infected with an unstoppable desire to acquire a gocco printer is to spend time ogling work of etsy sellers like sarahparrott825. Her shop, amusingly titled "things are better with a parrot," is full of some of the best examples of what this machine can do. Fruits, feathers, flowers, bird and Frogs are all rendered in minimal composition yet the illustrations themselves are beautifully intricate.
Sarah hails from Providence, RI and is a member of the Rhode Island Etsy Street Team. It's a small but impressive group of artisans which you can read about on their blog: http://arts-in-ri.blogspot.com/