Wire Guide
I needed a way to manage the wiring clutter (low voltage) on one of my my projects. Using Autodesk 123D (free), I designed a guide to hide my wiring.
The files are here:
http://www.thingiverse.com/thing:68644
You can modify the design file if you need a shorter piece.
The files are here:
http://www.thingiverse.com/thing:68644
You can modify the design file if you need a shorter piece.