How to Make a Mini Pocket Crossbow

Written by christopher michael
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How to Make a Mini Pocket Crossbow
A pocket-pen crossbow can fire toothpick arrows or other small projectiles. (Hemera Technologies/ Images)

Some crossbows use machines to pull the bow back into firing position. Once locked in, the crossbow stores and releases an amazing amount of energy. It would take woodworking skill and a full shop to make a weaponized crossbow. However, you can use the crossbow design to make a mini, pocket-sized shooter. Follow these simple instructions and you'll be shooting in no time.

Skill level:
Moderately Easy

Things you need

  • 2 pens
  • Ruler
  • Felt tip marker
  • Drill
  • 13/64-inch drill bit
  • Duct or electrical tape
  • Knife
  • Rubber band

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  1. 1

    Empty and strip the two Bic-style pens. Force a fingernail under the head of the writing bells to pry them off. Pull out the ink tubes inside. Pry off the end caps in a similar manner.

  2. 2

    Find and mark the centre of the pen tube with a felt pen. This tube will serve as the bow limbs.

  3. 3

    Drill through the centre of the pen tube with a 13/64-inch drill bit. Take the other pen, which will serve as the firing chamber, and slide it through the hole. Push the firing chamber pen about two-fifths of the way through. The assembly should resemble a cross.

  4. 4

    Tape the two pen tubes together with duct or electrical tape. Use a crisscross pattern to tighten the joint. Use three or four layers of tape for security.

  5. 5

    Notch the ends of the bow limb pen with a knife. Drag the edge of the knife across the ends of the pen, so there will be a notch on each side of the rim. Hold the knife parallel with the firing chamber pen when making the notches.

  6. 6

    Stretch the rubber band across the bow limb pen and feed the ends of the band through the notches. Tape the band down securely into the notches in the ends. Wrap the tape around the bow limb pen, three to four times, to secure in place.

  7. 7

    Insert a wooden barbecue skewer into the firing chamber pen. Secure the end of the skewer to the rubber band draw string. Pinch the band and skewer end between your fingers, then aim and fire.

Tips and warnings

  • The crossbow can cause bodily harm. Use caution and do not fire at people or animals.

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