IF YOU HURT SOMEONE AND BRING ME TO COURT, I WILL NOT TAKE RESPONSIBILITY AND I WILL PRINT THIS TO SHOW MY ADVISORY!
Remove the top of the pencil (just pull it off with your teeth).
Cut the part where the lead ejects.
Pull the core out.
Throw out the tip and save the spring as it can be useful in the future.
Cut the part on the pencil body so it is gone and cut the lead core where I did.
Put a rubber band on the clip.
Pull the rubber band behind the eraser hole and insert the eraser (or use whatever works for you).