Mini-mechanical pencils. How can you say that and not grin?
Acquire a pencil that the end can come off. Take off the end.
Take out the lead and break the pieces in half.
Put for two thumbs in the center of the pencil and break it.
Now you will see a semi-clear tube. Get scissors and cut at the edge of the broken pencil.
Put the lead in and the cap on and, voila, mini-mechanical pencil.