A crayon was a writing utensil.
Peter Summerfield drew all over Hass's notes with a green crayon. Bernice Summerfield gave him something less important on which to draw — something of Jason Kane's. (PROSE: Final Draft)
George Mann drew a sketch of Iris Wildthyme, Panda and Elspeth May using crayons and felt tip markers. (PROSE: Iris at the V&A)