This is a one piece pen-drive enclose case for Sony 8gb USB, might apply to other models.

The print needs to be stopped around Z=5,5 so as the flashdrive board can be placed inside the case. Once you that done, you can resume the print and the PCB will be embedded in the case.

I´ve printed in 0,3mm layers without support but i ended up with a bit lack of resolution so i would recommend printing it at 0,1-0,15mm layers.