A little while ago I got Charles a Magna-Doodle which he originally didn’t think much of, but lately he’s been much fonder of it. It’s getting damaged because Charles’ primary drawing technique with all writing implements is to strike them as hard as possible against the drawing surface over and over. Occasionally he rests up by moving the drawing implement across the surface of the drawing area. But that’s clearly a secondary technique.
What Chares likes best for the Magna-Doodle is to have someone else draw a picture so that he can erase it. Charles really likes to erase pictures of trucks (Dad likes to do landscapes, but Charles will complain and insist on a truck). Charles will glance at the picture, erase it and then show it to the drawer so that he can exclaim “it’s gone!”. All I can say is that the first person to explain sand mandalas to Charles is dead meat.