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Take a pen like the one shown
Unscrew top a little bit or off
Make sure the top is screwed on but not tight and like the second picture on the last step
If it does not shoot unscrew the top more
Ballistic Knife From Office Suppliesby alexf1
Paperclip Crossbowby Chikpeas Brother
Office Supply Catapult, Goes 35 feet!!!by weredude
Paperclip Catapultby vampierwolf
Working Tank Made of Office Suppliesby clairenoel
How to Enter the Instructables Office Supplies Challengeby Contest Robot
Office Supplies Pen Crossbowby TerminalDragon
office supply crossbow trigger w/ safetyby playpep
Office Supplies Toy Airplane With Spinning Propby EnderMine634
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