BlogHide Resteemsundeadgeek (25)in diy • 6 years agoHow to Make Ancient Chinese Coded Lock from CardboardYou need: Cardboard straw and cartridge of roller pen. Thank you for watching.undeadgeek (25)in diy • 6 years agoHow to make a mini Catapult with Popsicle SticksYou can make a bigger one for more power. Thank you for watching.