This is a video of a homemade visco bottle rocket I made. I sprinkled some coarse aluminum into the engine to produce some sparks.Want to know how to make your own? Here\'s a link to my instructables.com page with a step by step tutorial - http://www.instructables.com/id/E9NHL6PF3ER7X3M/\n\nhttp://www.metacafe.com/channels/Dandeman321/ Aluminum, Bottle, Bottlerocket, firework, Home, Homemade, Made, pyro, pyrotechnic, pyrotechnics, Rocket, sparks