Fee, Fly, Foe, Fund: A Storm King's Thunder Adventure is a pay what you want sidetrek for Storm King's Thunder available on Dungeon Master's Guild. It is written by former Wizards of the Coast staff member (and producer of the 5E core rulebooks), Greg Bilsland. It was designed for part of D&D 24-hour 2016 Extra Life game. 50% of all sales will be donated to D&D Extra Life team, so throw some money at it.
This adventure is a brings the characters back to Nightstone and deals with the hill giant wives affected by Chief Guh's (pronounced "Goo") plan. The whole thing is very combat heavy, which is fun. The maps definitely aren't professionally done, but this is a fun little adventure that's for a good cause.
I mean, c'mon, the adventure includes damage for a giant using half a cow as a weapon...
Thanks to +Stew Perkins for letting me know about this.