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Here it is my very first instructable ever so please don't put mean comments in my comments.
Knex Catapultby techman26
Binder clip catupultby Goalie1
my awesome knex hand catapult gunby holomon69
Knex Hatchetby MrShadowKnight16
My K'nex Weapons Of 2013 & 2014by Zombiekiller-93
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