So this isn't my idea I just thought it was cool. You get a big glass cup. Then you get a spray mister and spray the insides walls of the cup with water just enough to get it damp you don't want to soak it. Let it freeze for a lil while. Then you just blow your guns into into it and the smoke will just sit there in the bottom of the cup cause the ice cools it. Just turn up the cup and inhale. It's pretty cool.