So you made it this far? I'm impressed. You better get good and comfy--this is going to be a long boring ride. I guarantee it's worth it though, for a small subsection of the general population, like, say, if you're in prison and this is the only story they'll let you read. And even then you might still be better off just digging through the wall with a spoon. It's that boring. But let me tell you something. Rainbow Dash does eventually buy that hat. It just takes forever and a half. There's lots of adventure and comedy and boringness on the way there though. But I Pinkie Pie Promise, it ends in cuddling.
Haberdashery
(In which the readers collectively engage in learning about a flying pony's never-ending quest for Josh Haber a hat)