I don't ride at night much so I usually just have them in my bag. I got tired of having to dig them out to use or charge, so I made a few things to keep them organized during transport or charging.
The curved mount is a bit harder to make universal since helmets are all different. I made the one with "fins", theory is that you can heat it up a bit and bend it more or less to your needs.
The author marked this model as their own original creation.