I required a USB pen stick storage box to keep some drives safe during a long journey, so 3D to the rescue!
The case is very compact and fits 3 sticks, the caddy the USBs plug into rotates and is designed to be printed and then simply push snap fit into place. The case lid works the same way clipping into place to save damaging any printed hinges or such so it's more robust over time.
The closed box size is 60 x 54 x 25mm so it's very compact.
You can download the STL files for printing below, all files do not require supports at all but I would recommend a raft support for clean pulls. I printed at 20% fill with Black ABS.
base.stl
lid_v3.stl
usb_caddy_v2.stl
I designed the model in Rhino which only took half an hour or so. The only other component required is a piece of foam to cut to size so it holds the sticks nice and snug while closed, it also stops them rattling.