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This Knex swing was Built by 9 yr old - all by Himself. Reminds Me of the Swings at a Carnival.
Simple Swing | K'nex Ball Machine Elementby Linkin_J_Knex
Knex Swing Setby sexyreptar92
knex swingby nm28431
K'nex Ball Machine Lift: Giant Ball Catapultby Mechanical Master
Knex gravity acceleratorby ThijsL1
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