Found this pretty interesting. Was announced last month at Toy Con.
The Nintendo Labo is described as a DIY controller kit that is going to have two kits at launch, a "variety" kit, and the Robot kit shown in the video. The variety kit comes with cardboard materials to turn your controller into a fishing rod, motorcycle handles, pretty much anything you can make with cardboard. The possibilities are up to imagination and clever programming.
What really interested me was the Robot kit. I'd definitely buy a Nintendo Switch if a decent fighting game was developed. Seems like a good alternative to a $1200+ PC VR setup.