This is a rigged hand / glove, with a toon style.
As it's one of my first rig, it's not perfect, but it does the trick if you don't look to close. The rig is actually Big Buck Bunny style because I followed this tutoriel : http://blenderclan.tuxfamily.org/html/modules/content/?id=142.
Nota : Bones and mesh are in separated layers but you can put it all at the same place. Controled bones are hidden. To move fingers you can rotate the displayed bones. To fold the tip, modify the scale of this bone. To fold the whole hand, you can rotate the exterior bone (Deformation.F5). You can also use it High or Low Ploy depending on the subsurf level
Enjoy, improve and leave a comment ;)