It is possible to use an eraser as a makeshift stylus, however, its effectiveness depends on the type of screen and technology being used. The eraser's rubbery texture is similar to that of a stylus tip, which can allow it to interact with capacitive touchscreens found on many modern smartphones and tablets. However, it may cause scratches or damage to the screen over time and is not recommended as a long-term solution. For better functioning, it is always recommended to use an actual stylus designed for the specific device you are using.