Tai spends a lot of time giving runthroughs to the alts of friends. I didn't realize just how much time he had spent until during yet another runthrough this popped up:
Tonight though, I remembered that the Sporeggar quartermaster sold a pet. So off I went, gold in hand, to buy one. Only they didn't want gold. They wanted mushrooms. Tai tried to fly around and gather mushrooms but after a lap of Zangarmarsh he was starting to doubt they existed. Some comments on WoWhead suggest trying a ground mount. So Tai and Ying did a few laps and lo and behold there were actually lots of mushrooms and it really took very little time to get enough to go and buy a cute little sporebat pet.