Any good resources for crating with alternate materials? I found the guide for using various metals, but haven't found much else. For example, you can get a spider silk rope that weighs 60% less than a standard hempen rope, but cost 200x as much. Some guide on how to convert the costs for say, a tunic would be great. This specific example would be simple enough to hash out with the GM, but others not so much - the interesting part of crafting to me is using the rare materials found while adventuring. So yeah... Any good places to look for conversion info? Bonus points for Paizo-published material, but will consider third party sources if they seem balanced.
