Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3192332.
This is my Amozon Echo Dot (2nd Gen) wall socket mount. Originally designed to go above kitchen counter top to keep the wire out of the way. The design includes a hidden cable management solution, Support-less printing design and minimal to No post processing required.
Simply print the design, push in the plug (UK and US plug supported) feed the cable through into the cable management space clip in the DOT and plug it in.
The cable management space has been designed to use the space efficiently so you will need to tuck the cable in there quite neat and tight.
remember to print with a brim the example above was printed using PETG layer height of 0.20mm, with infill of 100% and took 4 hours to print on a Prusa i3 MK3