Use it to fill cracks?
It might make a decent raft if it only needs to last a few hours (it breaks down faster in contact with water, but only faster than 'a few days', which means still not that fast.)
Or use it to seal leaks or clog drains, if that somehow works in your favor.
Using it as a quick 'plaster cast' seems like it could be useful, too.
It's definitely a MacGuyver item, though. It isn't as obviously useful as, say, alchemist's fire.
Good way to automatically seal cracks in underwater structures or boat hulls. Layer the hull with a dozen bags of this stuff, then if any water leaks in, the crack is instantly bound up in foam. To find cracks, you simply need look around to see where the powder has turned into foam.
Underwater smoke cloud?
I once used a Bag of Everlasting Dung for this exact reason.
How expensive is it?
If it's cheap then think of the pranks...
I was thinking you could put a bunch of it under one side of a stuck ship in order to lift it up off the rocks and back into the water.
It doesn't take 1 hour to use, it takes 1 round.
Unless contained, in 1 round the foam fills a 5-foot-square to a depth of 2 feet.
One hour is how long it takes to harden. But if you're using it in combat (to make difficult terrain) it's a round.
Also: it's great for pranks. "The ale here is good but it has too much of a head" *drop foaming powder into mug*
...for throwing at water elementals? :P
Chucking into the froghemoth's maw before you run away?
oh god
the last two
i was thinking it could be used in conjunction with the geyser mode of the decanter of endless water to create far away difficult terrain and be horribly annoying to your enemies
hmm
id use it from my castle walls
nobody says it has to be in foam form to be useful
drop it onto the face of climbing enemies
i would equate it to concrete powdered, and a lungful of that stuff is deadly
especially without modern medicine
and then just for good measure, once they've got a god face-full/ lungful
hose em down with a few create waters
now they've got lungs full of foam
Throw a fist full of it into your enemies' eyes! Watch as it gels and crusts their eyes shut. Lord forbid some of it gets caught in their throat. :D
Why am I suddenly filled with a dread certainty that none of the uses you get on this thread will be what the designer intended?
Not that that's a bad thing, it's just the nature of these forums. Which is awesome.
9.1 meter demarcation line for penalty kicks :)
Foam over a pit, then paint it and let enemies charge over it (ha! difficult terrain!). Line up some poisoned spikes, then foam and paint over it, the weight of the person should be enough for the spikes to poke through. In a hole descending to the underdark, fill the middle of the tunnel with foam, paint it/cover it to look like the bottom, then cut the rope short so anyone not spiderclimbing down THINKS they are safely at the bottom and let go of the rope...
Carve a custom fit camp chair for a tenth of the weight of a folding chair, likely twice as comfortable as well.
Place it in the bottom of a false bottom cup, convince your enemies they have rabies, and you happen to have a remove disease scroll (explosive runes) if they have the coins/information you desire.
Why not poisoned foaming powder?
I know I'm coming to this thread a little late, but I'm looking for some more advice on exactly how this stuff works.
Like in the definition of of it, I'm just copying from Ohako's first post, "the two combine to form 50 cubic feet of thick green foam. Unless contained, in 1 round the foam fills a 5-foot-square to a depth of 2 feet. When multiple pounds of powder are used, the foam expands at a rate of one 5-foot square per round."
In pathfinder terms, exactly how many 5 foot squares is 50 cubic feet? and if you mix two of the packages together, the definition says it spreads faster, but wouldn't it also double the area that the foam could cover?
It says it fills a 5-foot square to a depth of two feet. 5 feet by 5 feet is 25 square feet, times 2 feet deep is 50 cubic feet.
For each pound of powder you use, you get to cover an extra square. The first round you cover one square, the second round you cover an adjacent square, the third round you cover another adjacent square, etc.
As soon as my character has a chance I'm going to buy foaming powder.
It's use is obvious. It's for selling to other, lower leveled adventurers. Just tell them it'll come in handy someday.
As a GM, you can have the BBEG pour this all over the floor of a hallway or room, then place a low grid over it. The Grid keep the powder from getting carried away by walking feet.
When the adventurers come a-calling, he can pull a cord to pour enough water to water into the hallway to put one gallon in each 5 foot square. Instant difficult terrain!
Got it, Thanks RumpinRufus