I got a very simple one, mainly visual oriented. I was thinking making "better fists", I can't watch that ugly idel pose of fists, fingers are all broken and curled.
I think I can make this looking better in first person view, more natural, but I didn't yet look how to deal with animation import/export into and out of a game, and how to test this stuff.
Basically I need .fbx of that idle fists pose animation so I can edit it and then we can overwrite it in data files, and test it. So if anyone wanna help me with mod that I wanna create let me know.

Miroslav, you might try
Miroslav, you might try talking to aerisarn here on the site. He's doing some work with .fbx files and might be able to help you out.