So I'm watching the MBA video of the Santa Cruz Solo 27.5, noticed the rider had a helmet light, and appeared to be getting up from a great night hut camping. I got to thinking....... Is there a solar charger on the market that one could attach to the light and helmet so the battery would be charging while riding? If not, how awkward would it be to have one made that would do the job and not be too uncomfortable while riding? Whether this would be for endurance events or bike trekking, or whether just for a small niche market, it just got my gears turning. Could this be my way on to Shark Tank???