Summary

I wonder if anyone remembers the green phone with cord.
EVERYBODY had it back when our phone company still had the state monopol.

Random thought:
I really should make a older version with a working phone dial.

Instructions

Unfortunately the one in the picture was printed "phone side down", resulting in the spaker-holes not to show.
It's best printed on the side for higher detail (but cord will be less stable).

You could print it standing up to avoid support material on the cord loops. Also, standing coils/springs tend to be a bit more stable due to layer orientation(see spring earring).

PS: The model is not one shell, as usual, this was a daily-earring and therefore quick&dirty. It can cause some problems at the cord where the pieces join. You may want to check it (run it through meshlab/netfabb/etc.).

Fun fact:
This one was done April-2011 and is one of the many earrings I have not uploaded for some reason.
I just discovered this due to the fact one of them broke and I went back to reprinting the model, checking Thingiverse for info on settings and orientation.

Telephone earring