Several people have built their PiLocoBuffers into more or less custom cases. This page should give an overview and tell you where to download files that help to reproduce them.
The files can be downloaded via the SourceForge file release system.
Felix has a fully 3D printed case that consists of several parts, held together with four screws. There are two variants:
STL files for “Normal” variant, see downloaded.
“Euro box” case used.
Also “Euro box” and 3D parts to hold the PI inside case plus little boards to hold buttons, LEDs and LCD.
Lasered case. See pictures in FREMO-Forum.