My friend "Hardwarekiller" did need a Micro USB Plug for an extraordinary long cable. So I designed the parts and they fit well.
What you see is the result which he already has printed with 0.1 layer height and 0.3 width. But you can use also 0.2 layer height.

There are two different parts. One (Micro USB Plug hole) has an open hole to fasten with a 2 mm screw.
You can also use two of the parts with closed holes and glue them together.