Graphite from pencils is particularly easy to erase, and erasers are also quite successful with charcoal. But with the right eraser, you can even erase ink – as long as it adheres to the surface of the paper like with a ballpoint pen or printer ink and does not soak into it like with a fountain pen or ink roller. A good example of an eraser that can used with ink is the MONO sand, an eraser made of natural rubber with fine microsand particles. The sand smooths down the surface of the paper, causing the ink to disappear. The MONO sand is not the best choice for fine paper, however, as it would quickly erase a hole in the paper.
The MONO sand can also be used to achieve creative vintage effects, like adding a retro design element to your lettering. But remember to use a heavy paper.