A little hanger clip I made for my charigami standing desk to hang my pencil holder on.

Here are the pencil holders I designed it to work with
http://www.thingiverse.com/thing:866544
http://www.thingiverse.com/thing:866572
http://www.thingiverse.com/thing:866567

Inventor and scale up 1000.
I printed in PLA, it was a little stiff but gets the job done. If you wanted to edit it I would consider removing some material from the top of the clip to give it more flexibility.