Rock farming. Nopony pays much attention to it.
Except when they are down on their luck and desperately need some bits. And when her boasting catches up with her and she loses all, Trixie is certainly desperate to earn enough bits to get her back on the road, desperate enough to challenge a rock farmer and partner with an expressionless rock expert in order to bring in the bits.
Trixie is the Great and Powerful, after all. Anything other ponies can do, she can do better... can't she?
Created for the Equestria Daily Writer's Training Ground #012: "Maud Pie"
This story happens between Boast Busters and Magic Duel.
Feel free to point any flaws; it's why I'm taking part in the Writer's Training Grounds, after all.