I originally made this as a part of a whole cartoony skeleton but as it turns it also works nicely as a chain that can be used as a bracelet or anything alike. It has a nice dynamic to it with all 3 rotation directions being there but heavily constrained.
The parts just simply snap together, some force has to be applied though.
Updated with the proper default scale and added a unchain piece.
Cartoony Skeleton: http://www.thingiverse.com/thing:644370
The Finger Chain is also originally made for the cartoony skeleton: http://www.thingiverse.com/thing:639907
Should be printed in ABS to ensure stability and 0.2mm or lower to ensure the hooks are exact enough.
Can also be printed larger.