Well... If I should create that I would start by using a water decal or foil in a pattern looking like the black on the picture, probably foil actually...
And the water decal or stickers for the little blue design that one of the fingers have, and then I would put rhinestones on top of it...
I guess thats more or less it... It looks hard to achieve, but I think once you try it, it will be easy to get the look..