I reckon writing commissions could be super fun. Tough to figure out a price or anything, though. Hm.
At the moment, I’m working off the inspiration that I was given - and that the price would be determined by the recipient of the drabble!
I don’t feel confident enough to say “if I write this much, you give me this money”. So it would be “you make a contribution - I write you a story”. I would also expect that if you gave $10, you would be more likely to get a longer story than if you gave $1.
But I also can say (at least for myself) that I am prone to getting carried away with stories I like! So it’s all very flexible.