Dry Ice

http://www.youtube.com/watch?v=cTP4yp8y_NA

http://www.youtube.com/watch?v=AI6BEHUFH80&mode=related&search=

http://www.youtube.com/watch?v=jhBLqzKuErI&mode=related&search=

almost took the big guys head off on one of those...he looked like he may have made a mess in his pants.

Dry ice is pretty sweet. We used to get steaks every Christmas that came packed in the stuff. My sister and I used to play with it...we never made bombs though, and we weren't dumb enough to touch it.

AWESOME!!

Those are pretty cool, I've always wanted to play with dry ice but never had the chance.

The last guy in the first video is a stupid mother fucker.

I used to work at a meat packing plant and we had dry ice around all the time for packing certian products in.
About once a week someone would make a dry ice bomb in a plastic pop bottle and throw it in a metal garbage can near some newbie while they were eating their lunch.
Or throw it in a metal locker and close the door while someone was changing in the locker room.