If you are using extension cords for USB cables or other data cables it is sometimes handy to use something that:
and probably some other things more...
I designed a (on purpose) not so small box - to do just that.
The fit is pretty tight and I added some dimples to prevent the casing from accidentially opening.
USB-Extension-Cover_v3.stl | 513.9KB | |
USB-Extension_Box_V2.stl | 266.0KB |