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document updated 17 years ago, on Jul 12, 2007

πρ Stuff teenagers sometimes play with at home for fun... most of it is probably borderline legal/illegal, and dangerous, but still generally innocuous as long as someone isn't being stupid.

spud gun, a classic (videos)
ping-pong gun, basically a mini potato cannon
drano/works bomb, metal + acid = gas, confined in a pop bottle = exponentially-increasing pressure (videos)
sparkler bomb (two versions: 1000+: basically a very tall fireball that burns for some time. 5-60 w/ tape: a very quick, load explosion) (videos)
smoke bomb = sugar + potassium nitrate (which you can get from stump remover) (videos)
dry ice bomb (videos)
chlorine bomb (videos)
various stuff in the microwave... xmas lights
blow butane fireballs from your mouth (though there's a real risk of inhaling gas into your lungs, and then SINGEING YOUR LUNGS, so obviously be very very careful)

Other lists

Makeshift Arsenal

General techniques

ball mill, for mixing things into a fine powder (videos)