More Blackberry Beard Arm designs

Try to come up with more ideas with how the arm would work. I'm thinking now that there would be fingers around the hole where the corkscrew would come out but the fingers would bend the opposite way causing the corkscrew to spiral out of the barrel. My initial idea was thinking about how a corkscrew actually works and applying that idea to my design. Still a lot more for me to think about and conceptualize. I'm also thinking that maybe a "hookshot grapple" could shoot out of the barrel too. It would be helpful for him to shoot it at someone's legs to pull them down or he could use it to easily reach higher places on his ship should he need to. I'm trying to think of practical applications for his arm. Now that I think about the drill bit arm idea it doesn't allow his corkscrew to get longer and spiral out of his arm. I think the corkscrew should be an important part of his character.