The original box is lovely but doesn't fit a Raspberry Pi model 3. This is a remix of the base to support a Pi-3. The original top and front are unchanged.

The Raspberry Pi PCB is fixed with four M2.2 x 6mm self-tapping screws but any self-tapping screws between M2 and M2.5 should be fine (max length ~6 mm).

FreeCAD design is included. Yes, I know the LAN and USB don't line up with the "RASPBERRY PI 3" PCB space model but the LAN and USB I/O connectors seem different on my PCBs to those on the model. I've tuned the FreeCAD design to fit my PCBs correctly.