These are highly prized for dying fabrics. They tend to turn all black as they get older which has led to them being given another name: "the bear poop fungus" because a few too many dyers have gotten their hands unspeakably dirty in eagerness to reach for what they thought was this mushroom.
I don't dye fabric myself but I was able to give this one away to a friend who can put it to good use.
Very cool