USB-stick SD-card holder (spinning) "The UFO"

This is a spinning combined USB-stick and SD-card holder (standard and mSD). There is a normal and a mini version.
The UFO-style holder can be fitted with a bearing and sits on a base to rotate freely. 

I also added a base which can be fitted with four LEDs and a barrel jack to illuminate a USB-holder printed from transparent material. The roation creates a nice effect. 
A video of mine printed from transparent PCTG can be found here: 
 

I used a 608-type bearing which should be pressfitted in the central hole. There are also two covers for the bearing if you like to cover it (one smoothed and the other with a pin fitting the bearing).
Most of those bearings come with a heavy grease. If you want them to spin freely (as in the video), you will have to wash them with IPA (alcohol) and oil them with a light oil. 
 

You might want to try printing the lower part of the holder to test if the bearing fits (depending on material used and shrinkage) before printing the whole thing. 

I also provided a CAD image (but not the STL) of a version with an included pen holder. But I don't like it's look. If you want that version too, just drop me a message. Maybe I could make the top edge “wavy” to look more stylish.