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Ok here is some pics on how to make a almost unbreakable knex block/box
Knex Clawby KNEX GUN BIULDER
K'nex Ball Machine Lift: Giant Ball Catapultby Mechanical Master
First Reverse Draw Crossbow Made From K'nex On Instructables!!by Professer Smileyface
K'nex Rail Cartby link2_thepast
K'nex - Mystery Boxby Zombiekiller-93
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