So I know Super Mario is frowned upon here, but I felt that this was a good discussion topic.
https://www.youtube.com/watch?v=f2mCqUSDCJENintendo announced a new AR Mario Kart game that allows you to create Mario Kart courses in the real world and then play them on your Switch. Add Legos to the equation, and you could build some insane courses for it. Is anyone going to give it a try? It seems perfect for it.