Mario Mushroom Guide September 20, 2013February 2, 2023 Shirtigo Jones Super Mario Mushroom Guide T-Shirt A young plumber’s guide to mushrooms. “Mario Mycology” design by digsy and nico’s bagpipes. Shirts available at Threadless. Rate this shirt: 5.00 avg. rating (99% score) - 1 vote More tees you might like: Mordor Dark Ale Caverns & Rabbits Monday Sloth Feel Invincible.