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Coin Operated Knex Gum Ball Machine!
You have to make instructions!!!!
The FreeKiller Repeating Crossbow
Knex Freek Semi Auto ( K.F.S.A )
Knex Tank Bow
Really cool but we wait instructions ;)Really nice work
Yet Another K'nex Gun (YAKG)
Knex Hole Puncher
Secret Knock Detecting Door Lock
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