Means rib hi-res stock photography and images - Alamy
Amazon.com : 30Pcs Mushroom Grow Bags with 0.2 Micron Filter Patch, 3 Mil Polypropylene, Large Size 8" X 5" X 20" for Mushrooms and Bamboo Fungus Ganoderma Mushroom, Substrates Or Grains :
Stone mushroom shaped objects. Found close to running water near Pittsburgh PA. Roughly 8oz each, 2in tall 3in wide on top, round shallow hole in bottom. Only defining marks are the + on top. : r/whatisthisthing