Hey, this is a little random, but if you're bored visiting relatives with no gadgets to fiddle with, here's a tutorial for making a a bottle rocket out of matches and foil. Beats helping with the cooking. [Instructables 1 and 2 and Youtube]
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The actual instructions, as primitive as they are is here: [www.youtube.com]
Pretty sad attempt though, a properly constructed match rocket can put your brothers eye out up to 10 metres or better!