USB cap for Sony USM Smartphone USB Flash Drive

[Sony USM Smartphone USB Flash Drive](http://store.sony.com/16gbmicrovault-smartphone-usb-flash-drive-zid27-USM16SA1/B/cat-27-catid-All-Computers-Flash-Memory) is designed to be connected to smartphones and tablets via the microUSB connector, and to computers via the USB connector. While the microUSB is protected by a cover, the other one is not.
So I designed this simple cover.