Desk headphone hook

Lots of options on thingiverse for a simple idea like this - but none would quite fit my desk. This is specifically created for the herman miller furniture in our office - the throat is 28mm wide. If anyone wants to edit it - I've included the sketchup files I used to create it.
1 version has a hook that I originally thought would be nice to wrap the headphone cord around ... in practice this doesn't work. So I created a new version w/o a hook.