You could try growing it on grape pulp at room temperature (20ish deg C). Stop using mouthwashes for a few days, then work up some saliva (not sputum) from your cheeks and spit it into a jar of grape pulp. I think that a lot of us are infected with Sporothrix globosa, a recently identified subspecies of Sporothrix schenckii. Schenck grew Sporothrix on grape pulp 120 years ago so it should be good enough for us.
WARNING: Sporothrix acts on grape pulp as brewers yeast does; makes lots of carbon dioxide, so don't use a jar with a screw top or it will explode. Make sure the jar is well ventilated.
S. globosa stops growing at around 36.5 deg C so specimens cultured at 37 deg C (all specimens are cultured at 37 deg C) are negative. It should be cultured at 35 deg C but pathologists don't bother. Furthermore it will grow en vivo at temperate latitudes but cannot grow en vivo at low altitude on the equator (where we are losing heat 24/7 to keep our core temp down to 37 deg C), so it could be involved in the pathogenesis of MS.
It is also exhibits very low virulence in laboratory mice.
This fungus ticks too many boxes for comfort.