I've put a lot of thought into your hands, It's kinda hard to describe so I'm going to show off my madz art skills and try to convey my message.
Please don't laugh at my drawings.
The club like gloves will probably restrict her hand movement, but she will still be able to use her fingers.
If my mad gibberish is confusing, let me know and i'll try to explain.
your drawing ability is soooo much better than mine. stick figures all the way... lol.. but i like the idea.. i was looking at reference pics and thinking about it and was also looking at weeds build and doing some more thinking. after looking at the reference pics the forearms are longer than the norm so this would not stay in proportion but is still an option. i am starting to lean towards static hands which will be shaped to hold a gun and then make a cut at where my daughters wrists are and then creat a hinge so the arm basically flips open for her to be able to use her hands. using hinges, magnets and put a grip inside for her to be able to hold the folding part of the arm would give it stability and maintain the proportions i am trying to do. i do like the idea and will definitely keep it in mind as i work through this portion of the build.