Yikes! Why does Thingiverse hate me? (or Opera)
I won't write & upload it all again.
Check out the Video here: youtu.be/BNK8JXje5JY
As even with my printer I was not able to print such a tiny working gear (at least without changing everything) I used a piece of string which winds arround the axis and turns the disc! (See Build instructions below)
Check out thingiverse.com/thing:17769 for the design this is based on and better pictures / color sheme. Sorry, I still have not colored it.
More Info on the semi-daily-earrings: thingiverse.com/thing:7120