Ocean Swimming goers!
Since the thread collapsed, I figured I'd put this here!
Due to Hunter's teleporting, him and Luz realized that Flapjack provides a great platform to do cannonballs and other dives off of into the ocean and he's been enlisted to help anyone who wants to join in such shenanigans.
He'd basically come down in bird form and once in arm's reach would turn into a staff and fly up with whoever is holding him the way that a magic broomstick would. Flapjack would remain steady until whoever was using him dived off and then would go in search of the next participant/make sure everyone is ok.