This is how to make a high powered pen gun that can shoot straight through tomatoes and, if powerful enough, through an apple.

Method 1
Method 1 of 2:
Cutting Off Part of the Pen

  1. 1
    Remove the ink cartridge and end of the pen. (hold onto the ink cartridge)
  2. 2
    Cut the writing end of the pen off. (It makes it easier to fire.)
  3. 3
    Cut the elastic band in half so it becomes one strand. Then put a dot in the center of the elastic band strand.
  4. 4
    Put the dot of the elastic band strand over the smaller opening of the pen (you can use a texta tube instead for it being larger)
  5. 5
    Get both ends of the elastic band and pull them down either side of the pen, and sticky tape the ends of the elastic band onto either side of the pen with a little bit of the ends still out so you can turn them back over the sticky tape, and fold the ends over and tape them down again, to acquire greater holding and a lower chance of hurting one's self.
  6. 6
    In order to fire, slide an ink cartridge down with the writing part (nib) is facing outwards.
  7. 7
    Hold onto the end of the ink cartridge that you slid out the other side, and bring the dot of the elastic onto the end of the pen and grip onto the elastic band with the ink cartridge sandwiched in the middle.
  8. 8
    Pull back on the elastic band and ink cartridge in the middle and in the other hand the pen gun.
  9. 9
    Ready, aim, fire!

Community Q&A

  • Question
    Will a high powered pen gun hurt someone?
    Community Answer
    Community Answer
    If fired at close enough range, then yes. The pen has a sharp point that can prick skin.
  • Question
    Can it hurt people?
    Billy Alton
    Billy Alton
    Community Answer
    If shot at close range, it might. Remember to be careful with projectiles and to never shoot at the facial area or other sensitive spots.
  • Question
    What can I use other than the ink cartridge for ammo? I want to have options where I can carry more than one piece of ammo at a time.
    Community Answer
    Community Answer
    Capri Sun straws, possibly. Perhaps toothpicks or sticks.
  • Question
    I have made it, but it doesn't fire hard and goes only 3 or 4 meters. Can you help me?
    rtgwrtrb ntybdrdt
    rtgwrtrb ntybdrdt
    Community Answer
    Just pull the elastic rubber band further with the ink cartridge and let go, it should shoot farther. If that doesn't help, read back through the instructions and make sure you did everything correctly.
  • Question
    How much force is the pen gun?
    Community Answer
    Community Answer
    Not much. It depends on how much you pull the rubber band back. Note that you might want to use a smaller rubber band for the gun.
  • Question
    How can I remove the bottom part of the pen?
    Community Answer
    Community Answer
    Try sticking the ink cartridge hard enough down the barrel. If that doesn't work, carefully try biting it off. To do this, bite the end of the pen (not too near the bottom part) and slide it out by moving your teeth ever so slightly towards the bottom. Make sure to clean the pen first before doing this.

Warnings

Things You'll Need

  • A hollowed out pen or texta (easier if texta)
  • Elastic band (preferably a wide red elastic band although any strong wide elastic band will do)
  • Scissors (these are also to be used a pliers)
  • Ink cartridge from pen (this is your ammo)
  • Cello tape (to hold the elastic band in place)

About This Article

Tested by:
wikiHow Video Team
wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 29 people, some anonymous, worked to edit and improve it over time. This article has been viewed 251,422 times.
70 votes - 71%
Co-authors: 29
Updated: March 3, 2021
Views: 251,422
Categories: Toy Weaponry