I used to do something that is really pretty dangerous. Had a strap with a loop in it on the left curve of my bar just under the clutch cable. When I got tired would reach in my bag for a 18" long plastic vertical blind hook. With the throttle lock on I would lean back and hold the rod like reigns. Slight push pull steering the bike with no hands was simple on the slab and you rest both arms at the same time. My brother had two leather straps tied to the bars right and left of the risers for the same purpose.
I was a lot younger then.
