Basic K'nex Launcher : 6 Steps - Instructables

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The Apocalypse - a K'nex Ball Machine : 8 Steps - Instructables

K'nex Bending Rod Launcher : 9 Steps - Instructables

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K'nex Catapult : 3 Steps - Instructables

K'NEX Rocket Launcher : 6 Steps - Instructables

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