Noncanon:Ysgardian mahogany

A dark, heavy wood, Ysgardian mahogany is among the thicker and sturdier strains of that wood. Though difficult to work with, rapidly dulling tools that aren't specially treated for use with the hardest of hard woods, products made from this substance are long-lasting, withstanding the elements as well as (if not better than) a varnished piece of normal wood. Items made from Ysgardian mahogany gain a +3 to saving throws.