The cover can be anything strong enough not to disintegrate too soon, metal, plastic, wood, textile, stone. The cover could move, but does not have to. In order to move, it needs motors and the motors need power. A small computer (like Arduino) can control the hand if you wish to move it. The trick is to attach it to the human body
draw around your hand on a cardboard and only cut out the palm section add bendy straws for your fingers and tie strings through the straws and you have a puppet hand
Awesome question! This is where you get to think like an engineer, what is a hand? What do you need it for? What does it have to do? How does it move, how does it rotate, how does it feel, how do you sense heat or texture, how much pressure do you apply when you touch objects, how do you pick up objects? Creating hands is a really big area of research in making prosthetics for people who have lost their hands and also in robotics. We can create single features quite easily but recreating a human hand exactly is a big (but very interesting) challenge!!
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Anime God ._. commented on :
Thanks._.