Surprise the mushroom hunter on your list with a gift from Fungi Perfecti. This clearing house for all things fungal offers oyster logs, growing kits, books, and much more, plus a cool ballcap that I wear myself. But if you're looking for that perfecti stocking-stuffer, you can't go wrong with a Rockwell stainless steel mushroom knife. The knife is rated with a blade edge of 54-56 and comes with a handy belt sheath for easy access. The bright yellow grip makes for easy visibility if you drop it on the ground (unless you drop it in a dense patch of golden chanterelles!), and coolest of all, the knife butt is adorned with a small stiff-bristled brush for field cleaning your catch.