We have all in our time had to deal with a naked flash drive, where the enclosure has broken or something. I have re clothed 2 flash drives so far. I print most of the cover, pause the print and then continue the print to fully encase the flash drive PCB. Excuse the chewed plastic in the picture, a puppy had at it at one point.  I embossed by Initials and Student number in this one so that it could easily be returned to me if misplaced.

https://www.thingiverse.com/thing:2781749