I am building a project in a wooden box (for aesthetic reasons). It will be supplied by an external 5V regulated DC power supply. The original plan was to use a 2.1mm socket to connect to the power supply. Unfortunately, the walls of the box are 14mm thick and no panel socket I can find comes anywhere near being able to mount this deep. If I mount the socket so that it is recessed in the wall of the box, then it will be too deep for the plug to reach.
The obvious solution is to have a captive fly lead coming from the box, but this won't result in quite the right aesthetic I am going for. Before I go down this route, does anyone have any better suggestions?