Had an idea for a hand rig in Unity2D. Each finger is just a line renderer. No bones, just control points, bezier settings, and a rotation script that uses the line base rotation to rotate the other points. I can even spread, tighten, and adjust the joint lengths and line widths!
Best part, you can import a drawing of any kind, make it a material, and assign it to the line renderer. For those of you who like a more detailed finger.
Of course, this doesn't account for top sides of fingers, but I'm sure there's a solution I just haven't figured out.
