just bought my second cannon off eway.
it's a tradition in my family to blow a bit of bark off a tree on the fourth.
cool site to see what your fireworks will actually look like:
tntfireworks.com/ncom/tnt/main/video.html?id=3133337945607&zip=YEAH!
take the YEAH! off of the link
some extras i like is saturn missles times a few thousand. take a box of whistling bottlerockets and unwrap them all. stick 'em in a huge bucket (wooden box works better) and throw a strobe or flare in it. 144,000 saturn missle fire. it will clear a pretty big area of people quickly.
little sparklers are loud too if you wrap a pack in electrical tape and light one. it expands until explosion, sound's like a quarter stick of dyn.