Mushroom hunting basket with ground spike. I guess it's for holding the basket in the ground while you pick mushrooms.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...t_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...ing_basket.jpg
Previously:
https://www.homemadetools.net/forum/...3352#post98829
https://www.homemadetools.net/forum/...961#post119965
https://www.homemadetools.net/forum/...267#post121607