Helmet Locks?

My strategy for helmet security. If we're wearing our fullfaces we (I) just carry them with us .. our open faces , if someone really wants'em they are welcome to them.
 
Lock

I use a Kuryakyn 4220 Chrome Universal Helmet Lock mounted on my front left crash bar
 
Chrome universal I installed next to the left grip. Works perfectly and allows helmet to sit between tank and bar. Like Mitzy's idea for the jacket. Have two of those ski locks just need to dig out of the ski coats!