I'm building a small iPhone iOS 6 app with a lot of custom design, and primarily using UIAppearance to apply custom styles. 
In the app I would like to use a UIPickerView and a UIPicker but the style of these elements don't fit into my app, it looks horrible. Today I found a pick at dribble.
I think I need to create a custom UI-Element myself to achieve a look like this.
What would be a good approach to create a PickerView myself. I don't ask for a complete code, but for some ideas how to start coding.