I'm currently running the giant slayer AP, and the group has just finished the first book. There's a room full of random large sized stuff, I was wondering if there's any rules anywhere for resizing non magical items. The book mentions that later they will be able to resize magical items, but what can be done with non magical?
Really, without using magic, ordinary stuff in Pathfinder works like ordinary stuff in the real world. Which means that taking an ordinary item and reducing it to half its current size is just as difficult for a Pathfinder character as it would be for you in real life.
Unfortunately, there is no spell or magical ability that I know of for this. Shrink Item is close, but it only lasts 1 day/level and it seems to ONLY reduce items to 1/16 size (which would turn a giant's greatsword into a halfling's dagger, maybe too much reduction to be useful.
Crafting skills could probably be used for some things. Treat the existing giant sized item as being the raw materials for crafting a smaller version. It would still take the usual amount of time, though a nice GM could shorten the time too, saying it was mostly an effort of cutting it down to size.
Might not make sense to do that with everything though.
Really just up to the GM.
One solution might be to make a 2nd level version of Shrink Item. Call it Reduce Item and let it work the same way but reduce it to 1/2 size, or even 1/4 size, for 1 day per level. House rule, but seems reasonable. Maybe the GM could drop a scroll in there - the PCs find some merchant's corpse killed in the woods near some giant village, apparently a trader who bring a wagonload of reduced items to sell to the giants (they are easier to fit into a normal wagon if they're reduced) and he has a scroll of this spell, or a wand of it.
I'm looking for an actual thing, if such exists anywhere.
Ohhh, I see, you wanted an actual thing.
Have them haul that giant crap to a merchant who pays them half value (if they're lucky; said merchant may just pay less than half value because it's really hard to sell giant crap to medium customers), then they take their cash and buy whatever they want.
Conversion complete using an actual thing: hauling and selling and buying. I guess that's three things.
There are no spells or magic items that allow for permanent resizing of non-magical items. Either ask your GM if your party wizard can come with such a spell, or get used to selling those large items for the material they're made of.
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He is the GM.
Seriously, the best actual thing is that it's your game. Make of it what you wish.
In Lord of the Rings, did you see Aragorn stop and check the pockets of every orc he killed? Of any orc? Did he haul furniture back to market to sell for profit? Does any hero do that?
I get it, this game is different. Adventurers worry way more about cash and profit than typical story heroes. But worrying too much about every possible sellable item is unnecessary.
In the end, you as the GM have a Wealth-by-Level chart that can guide you to decide how wealthy the PCs should be. If you notice that they don't have enough wealth, per that chart, then add some fat stacks to the next treasure hoard they find to bring them up to par. Or the reverse, if they're over the suggested value for their level.
If you planned on having them USE that pile of giant crap, then you probably wanted that to be part of their level-appropriate wealth. If they actually take it and resize it or sell it, then you were right, it is part of their wealth. If they don't, then you add some fat stacks to the next treasure hoard they find to balance the value of that pile of giant crap they left behind.
Either way, they get the right amount of wealth per level because YOU arrange it so that they do.
Clever players will figure this out. They'll pass up the hard stuff "What, how are we supposed to take all this oversized crap to town? Leave it here!" or "Not another room with 80,000cp in a giant pile! Just leave it already..." because they know you'll make it right for them later. Which is fair.
Because Aragorn...
(that's the best "actual thing" I can give you here: advice)
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Very nice.
It's 3rd party, so not official Pathfinder thing (but it probably should be, or something like it). On the other hand, it seems too overpowered. No spell component, permanent effect, it even affects magic items. I get it, it's made to be a tool to keep people comfortably on track with the WBL guidelines without spending hours of real game time negotiating with merchants. But it seems like there is something missing here.
I'd suggest a spell component. Maybe a variable one worth 1/10th the price of whatever item is being resized.
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AdjustVery nice.
It's 3rd party, so not official Pathfinder thing (but it probably should be, or something like it). On the other hand, it seems too overpowered. No spell component, permanent effect, it even affects magic items. I get it, it's made to be a tool to keep people comfortably on track with the WBL guidelines without spending hours of real game time negotiating with merchants. But it seems like there is something missing here.
I'd suggest a spell component. Maybe a variable one worth 1/10th the price of whatever item is being resized.
I also think it is over powered as a 1st level spell. I second your suggestion.