In Oregon, you can have fountains and lesser. No bottle rockets or the like. Across the river in Washington, you can get mortars and some more powerful stuff, but oddly, no bottle rockets...not even the little kind.
We got caugh red-handed shooting off the illegal stuf here when I was in my early twenties. Nothing serious happened...the cop just took what we had left and told us to knock it off. That was before 9/11 and the paranoia though.