This instructable will show you how to make a speargun out of a regular clicking pen...very powerful,effective,and fun!
The best uses for this pen gun would be to make loud noises in class by shooting it at a filing cabinet, as well as shooting the insides of the pen into the textured ceilings that are very common in schools and offices.
WARNING:DO NOT FIRE THIS AT PEOPLE, IT IS VERY POWERFUL!
Step 1: Step 1
You will need:
(1)click pen(nothing fancy)
(1)thick rubber band
(1)rubberband(thin or thick, it doesn't matter)
scissors or wire cutters
FIRST: Dismantle the click pen.Make sure you take off both ends,so just the plastic tube is left... that is your barrel.