This is also a storage compartment because you can put in as many bullets as you can then put the cap of the pen on and it holds your bullets
This is one of the easiest things I've made yet and it is very fun.
I am not to blame if anyone gets hurt.
Step 1: How To Make
You will need to take apart a regular bic pen so that it is a hollow tube then on one end you need to put a staple to hold the bullet in put the bullet on the other side of the pen and blow from the side with the staple