Blast from the past man!
I remember the teachers complaining about the chalk dust getting on their hands, then clothes and they requested chalk holders post-haste.
The new technological marvels arrived and all were stunned by their plastic gloss and ability to auto-feed with the push of the button. Also hurt a lot more when thrown at us unsuspecting rabble-rousers.
Your autistic artistic labeling and palm finesse work! I have a big chunk of that wood and have no idea what to do with it.