In this instructable I will teach you an old trick to make a mechanical pencil into a pencil launcher. Every thing you need is already in the pencil .
NOTE: All pencils are different so the steps might be different. However in the end all you need is an outer tube, an inner tube, and a spring
Step 1: Remove the Tip of the Pencil
Remove the tip of the pencil. It should either pull off or twist off. In this step I also removed all of the lead in the pencil.