I recently received my Onion 2+ from the Kickstarter and came looking looking for a case to put it in. I found the OnionOmega Enclosure by Duan-za and printed it up. I couldn't get the case to close properly because it seems the new Onion, when installed, is slightly higher from the one this case was made for.
I made a few changes to the top of the case. I shortened the protected wall around the expansion connector by 1mm as it was also contributing to the case not sitting right. I removed the lettering from the top and added two holes for the LEDs and a cutout over the MAC address sticker. I also made the top 1.5mm taller. The new top fits a lot better.
The USB-A connector has moved a bit and the separator between the two USB ports overlaps the A connector. It hasn't prevented me from plugging anything into the slot, so I didn't change it. If it does interfere, it can be easily removed.
I am including the original bottom from the remix for completeness. There were no changes made to it.