This is a case for a caseless flash drive (Pictured)
IMPORTANT: THING HASN'T BEEN PRINTED YET. DO NOT JUDGE
Using Fusion 360, I drew a circle that appeared to be large enough in relation to the drive. Then using a caliper I marked the vertices of the drive, then extruding the area around the drive only, I created the case.
I imported the model into tinkercad and attached the rebel logo made by ty10y, (Find it here: https://www.thingiverse.com/thing:1030033). From there it was a simple upload to this website you are reading this on!