Here's a 3D-Printable cRIO cover that will protect the cRIO and its modules. It sits comfortably on top of the cRIO itself and allows room for all wires and cabling to be connected to modules through the top. The cover allows for organization of wiring and allows for zip ties to secure all wiring in a bundle to the side. Here's a link to the thingiverse download:
http://www.thingiverse.com/thing:233663.