Genki Covert Dock for the Nintendo Switch.
Boss (now ex-boss) bought this for us as a Christmas present (we gave his kids our Nintendo Switch Labo set since it was just collecting dust).
It's really convenient for travelling - don't have to bring the original dock anymore if you want to hook up your Switch to a big-screen TV when playing multiplayer at a friend's house or at a hotel room.
Too bad we can't really travel anymore now though...