UPDATE: Please use this thing for an upgraded version http://www.thingiverse.com/thing:2124509

This is a customizable hinged box.

You can define the size of the barrette to join both pieces. If you don't have any, a piece of filament can suit perfectly. After inserting the filament, you only need to melt a bit the tips on each end to fix it to the box. Use a solder to do it.

Hope you like it.

Enjoy it!!!