Headphone hanger w/screws

Thingiverse has lots of headphone hooks and hangers that clip onto tables and shelves, but I couldn't find any that were designed to screw into furniture from the underside, so I've tried to make my own in Sketchup.

The screw holes are placed right at the edges of the mounting plate so that you can screw them in at a slight angle with a normal manual screwdriver. The hook will probably get in the way of an electric screwdriver and bits though.