Quote Originally Posted by SumSkater540
The paper towel thing rocks if you want no pot smell it all. If any smokish stuff even comes out the other side it just smells like fabric softners. Great for smokin in a house full of people that cud catch you (parents, etc.).
This is going to sound really dumb, but it works.

When I was in college one of my friends got ahold of an old Gas mask. He disassembled it and rigged up one of the intakes on the end of a PVC pipe (while he was stoned of course, otherwise it would have seemed like a dumb idea). When we smoked in his room we all exhaled into that, no smoke came out at all and there was no smell of weed.

If anyone has a military surplus store nearby give it a try.