Or get a bud-buster... as I said earlier. Check them out if you don't know what they are.

Look at that site, you see those things, they are bud busters. They have nails on both sides, put the weed inside, close it and twist to your hearts content. It "busts" up the weed nicely, plus it's basically silent. No batteries required.

I have this one but with a different logo on the top.