Need help for disabled brother Basically my BIL is disabled and has limited use of one of his hands. He's able to roll with one of those crank machines, but he doesn't have a grinder. We want to get him one as a gift, but it seems there aren't too many accessible options online and local headshops are currently closed. 

There was one with a crank on the top which seemed like it would work well, but one that can be opened/loaded with one hand would be ideal, any suggestions?

(Vaping is not an option)

Thanks!