Quite often I need to dry my swimming gear under my desk at the office (yes). Thus, I decided to make a hook I could attach underneath. The design is simple yet effective, I did several stupidly complex iterations before coming up with this design which is simpler, stronger and prints in much less time. I may upload them as examples of failed attempts.

Edit: I've just made a new version of this replacing the old one. My biggest complain about the old one was the small area left behind the hook to hold the things. I think this is much better now.

Download and print. It takes 14 minutes on a Makerbot Cupcake CNC