Sergio, are you asking how to make a set of controls that look different from the standard controls? Depends and may not be so easy. A switch is maybe the simplest of controls so a good place to start. It basically is a control that has two appearances. Tap it and it toggles between the two appearances.
Look at the Apple example code called Accessory. It shows how to have an accessory in a table view that toggles between two appearances. Unfortunately it doesn't create a UIControl subclass. That's what you should do. Start with UIControl and build a switch.