It is a simple and powerful pencil shooter/crossbow
Step 1: Safety Gear
When building this device you WILL NEED safety goggles when using the saw and the Exacto knife
When firing this device you WILL NEED safety goggles.
Above all: use common sense.
Don't fire things at the cat.
Don't aim things at your self.
Don't give this to someone that you would not trust with a book of matches.