Step 1: Step 1
Tape two pencils together, leaving at least a centimeter untaped at either end. Repeat with two more pencils.
Step 2: Step 2
Tape the two pencil pairs together to form a lowercase t. Duct tape works best, but you can use other kinds of tape (or even rubber bands or glue). Again, leave the last centimeter of each end uncovered. Tape the pen pairs into a lowercase t still leaving the ends uncovered.
Step 3: Step 3
Take apart a cheap or useless pen. Unscrew if necessary and remove all mechanisms including the ink cartridge, springs, and/or tips. (Save the ink cartridge because that will be used as the ammo later.) When you are done, you should end up with a hollow tube. Dissemble the pen. Save the tub and ink cartridge.
Step 4: Step 4
Tape the tube to the main bar of the t. Be sure to line the top of the tube up with the top of the tÂÂ which will be the shooting end of the crossbow. Line the tube up with the top of the t and tape into place.
Step 5: Step 5
Stretch a rubber band horizontally over the tube. Anchor the rubber band by sliding it into the gap between the pencils on either side of the crossbar of the t. Stretch a rubber band over the crossbar of the tÂÂ wedging it between the pencils on either side.
Step 6: Step 6
Wrap tape around the center of the rubber band several times. This will be the cradle from which you launch the ink cartridge. Be sure not to tape the rubber band to the crossbow itself. Use tape to make a cradle in the center of the rubber bands.
Step 7: Step 7 (optional)
Wrap a rubber band around the pencils beneath the loading end of the tube. (The loading end is the one where the tube does noÂÂt line up with the end of the crossbow.) This adds elevation, which will come in handy later. Wrap a rubber band around the pencils beneath the loading end of the tube.
Step 8: Step 8
Put the ink cartridge back into the tube so that it's sticking out slightly. If it goes in too far, simply tilt the crossbow to slide it back out. Load the ink cartridge.
Step 9: Step 9
Stretch the rubber-band to the end of the tube. Be sure to stretch it to the loading end, not the shooting end. Stretch the rubber ban back towards the loading end.
Step 10: Step 10
Grab the ink cartridge, pull it back with the rubber band, and let go. Note that if the ink cartridge is still full, you might actually draw on whatever you shoot at.
Step 11: Step 11
When done, use the top and bottom of the pen for a cap. Hope you have fun shooting.