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This is my knex rocket. It's really tall but it's flimsy on the middle part. It's really easy to make and it doesn't take up too many pieces. ...
Knex Pansershreckby KnexFreak360
K'NEX Rocket Launcherby nerfrocketeer
Knex roller coaster: Rippin' Rocket 3by knexinventions 49
Knex Cannonby KnexFreak360
Knex rocket launcher K.P.R.L. (Koenykoen's portable rocket launcher)by koenykoen
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