@lproven You could also illustrate it with "height of columns of rice on one field of a chess board". The chess board was made by Dutch science teacher Arjan van der Meij https://www.instructables.com/Chess-Board-Full-of-Rice-Exponential-Growth/ I just added the labels after seeing your post.
It shows that, if each byte had the size of a grain of rice, any amount of data beyond an exabyte corresponds to a column of rice that extends in space beyond the farthest removed human-made object (Voyager).

@SylviaFysica @lproven this is great, I've been looking for something like this for a lecture, but didn't know what exactly to search for