BUCKET!!!!

[BoboGanja]

Me and some friends have grav bong contests, where we see who can hold a full hit from a g-bong the longest... sometimes we end up forgetting that we were even having a contest by the end of it!

[Sentinel]

anyone heard of parachutes? you cut bottom of 2L off, tape bag around and stuff up bottle. Make foil bowl on top, put weed on and light, while pulling bag down. This sucks the smoke into bottle and voila you have 2 litres of smoke at your disposal.

[slipknotpsycho]

..most ppl here know those as lungs..

[stonefly]

If you make your gravity bong too big..... the smoke left in the chamber will get stale. Stale smoke sucks. Coughs you and tastes awful.

[supersonicchronic]

If you make your gravity bong too big..... the smoke left in the chamber will get stale. Stale smoke sucks. Coughs you and tastes awful.

Thats why you go big or go home.

[mono repin]

Gonna have to go with supersonic on this one. Double, or more lungfulls of grav bong hits are amazing, because grav bongs will put you on you ass anyways, but if you take them as breathes in a row you get super fucked. Thats why gas masks (and my swim up into the garbage can grav bong) are a neat idea, I think I might start scheming to make one (mask).

[Gothen]

Okay, first off, I have to say that mono repin...I love your avatar. That movie is hilarious!

Anyway, I think that making the pool thing would be easy. You'd just need any-time access to a pool. Then you'd need the trashcan (WITH A BOTTOM). Take the trashcan and cut out (how is J00R problem, sorry, ^_^) one-two holes in there big enough to fit a cereal bowl, or something like that size. You need to find something shaped like a bowl, though. I would just take a plastic cereal bowl, cut out some holes in that, put a couple of tightly layed tinfoi over it, and cut out holes in the tin foil. Place that into the hole in the trashcan and you're a fourth of the way there.

Now, the next part is easy. First you have to get, like, 6 friends. 5 of those friends are going to be using candle lighters (the ones with the big shooting flames, like Bic). The other one should be strong enough to lift the trashcan. Then, obviously, you have to have the weed.
Now, get into the pool and have them slowly lower the trashcan over you. Have then lower it as much as possible until your head is just above water (comfortably). Then, have someone put the weed into the bowl(s). Then, at your signal, have them light and raise it up swiftly at first, then somewhat slowly (ya know). Then, just stand in there for about 3-5 minutes. It won't even take that much if you have the bowl full.

[mono repin]

Screw the swiftly at first. Pull that thing up nice and slow, really milk it for all its worth. You want a cloud, no a freaking rainstorm of thc on the inside for when you go up in there and start breathing it in. Stay inside it until you are coughing furiously, or its no longer cloudy.

[slipknotpsycho]

has anyone stopped to think about the fact that if you did this you might pass out and your friends might not see you and you'd die? just as a precaution you might want an extra one that can keep an eye on you and make sure you aren't....if someone should really try this....

[Hempamasta]

I just had an idea for a huge ass gravity bong. Go to a lake dock with a huge thick pvc pipe, put the removable bowl at the top, have someone at the bottom that lifts it when your lighting it. Then when its full, about 7 feet of smoke, jump in the water with your mouth over the top.

I'd be afraid of impaling myself and not getting high at all... getting dead, in fact.