Based on the outstanding Mini NES Pi 3 Case (Customizable) by LKM, this is a simple remix for the bottom and top parts of the upside down pi version, to allow for a Orange Pi PC to be placed in the case.
I've yet to print this as I still haven't received my Orange Pi PC
Update 22/05/2018: It seems that LKM is no longer in Thingiverse and the thing that I based this remix on is no longer available, as such I added the missing stl's that were on the original thing to my remix. I advise everyone to quickly download this updated version and also the original version by LKM, that was uploaded by another thingiverse user.
Update 10/06/2017: Received the Orange Pi PC and assembled the case, the fit seems to be spot on (check the pictures). I also did a new lid with the Nintendo name and a small bracket to add a 5015 5v Blower fan, you simply need to superglue the bracket in place. The fan combined with the heatsink keeps the cpu cool and to avoid the noise the fan is connected to 3.3v pin.