Boston area mushroom merchant Benjamin Maleson knows a thing or two about musical mycology. Watch him play "The Trumpet of Death," a melodious (and not poisonous) mushroom you can blast like a kazoo. Watch him show you how. See also: Vienna's Vegetable Orchestra.
So I looked this guy up and back in 1983 he was part of this big ethnobotanical study tour of Chinese mushrooms. So I guess he knows a thing or two about fungus. Besides anyone who tries to play "Four" on a mushroom obviously has to something worthwhile going on in their heads.
His hands like pretty badly hammered by arthritis though, I think. Pity.