When it comes to sourcing unique handle materials for handcrafted blades, Santa Fe Stoneworks stands a cut above the rest. This stainless steel pocket folder comes equipped with a handle made of fossilized woolly mammoth bone. As ridiculous as it may seem, there's a whole bunch of the stuff that can be salvaged from deep underneath Siberian snow today. And because they're all made of a fossilized natural material, no two of these handles will look exactly the same.