A method for rendering advertisements on touchscreen devices having small screens is provided. Components of the existing GUI (i.e., controls) are used for rendering advertisement (or other) data. Existing mobile device GUI elements have visible surfaces filled with a background color (or pattern). These surfaces are “painted” by an advertisement data similar to a wall painted by graffiti. The advertisement data can be static or it can be generated on-the-fly. The GUI controls can be used independent of each other. Thus, the advertising data can be selectively displayed only on some of the controls without distracting the user from the main tasks.