Lego 3x2 USB Cover
thingiverse
Fits on a common USB minus the metal case around it (like the pic I included).
Download Model from thingiverse
With this file you will be able to print Lego 3x2 USB Cover with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Lego 3x2 USB Cover.