What happens if you combine Orbitwheels
with a Razor Ripstick?
I suspect the answer looks something like the Skatecycle,
This device is real and the manufacturer shares some videos online
that make clear it’s possible to control these things pretty well. Is that Washington Square Park? I like that none of the pedestrians even break stride for this guy. The device fits into its environment pretty well.
Available online from various sources for about $170.