When Frank is talking with Leo while he fixes the car they are discussing a book and wondering whether the tiger on the boat was real or not. This is a reference to the popular book Life of Pi that was adapted for film and met with much critical acclaim in 2012.
The tiger that Frank and David's daughter discuss is from Life of Pi. Later while Frank meets with Gunner, David is sitting reading Life of Pi eating the second half of his sandwich.
The drone that Micro works on during the beginning of the episode is a DJI Inspire 1.