The HMS Boy Balls is a vessel created by Robbaz in Season 2, Episode 3 of Stranded Deep. It is named The HMS Boy Balls because "It has boy balls (buoy balls) in it."
In S2E04, Robbaz uses the HMS Boy Balls to discover a new continent, and begins to use it as an oil transporting vessel.
- The HMS Boy Balls, because of it's size, cannot be tipped over by sharks.
- The HMS Boy Balls has a sail, so it doesn't require an engine to steer.