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Blow your friends away as you send this 25-cent rocket hundreds of feet in the air.
Get the PDF for this project: https://makezine.com/2010/04/14/weekend-project-compressed-air-rock-1/
The rocket template is here: https://cdn.makezine.com/make/15/Rocket_Template.pdf
More great projects at https://makezine.com/projects
