A case for a digital clock. A touch sensor mounted on the top inside the case can be used for additional functions, in the video I used it to display the weather from Darksky.
The parts used
3mm Perspex panel 135mm x 36mm.
"MAX7219 Dot Matrix Module 4 In One Display" common on eBay.
"TTP223 Touch Sensor Module" The red ones also on eBay.
Wemos D1 Mini and USB lead.
Connection board. Either a prototype strip board or http://ebay.us/PeYuHQ
Some demo firmware for the display https://github.com/Mottramlabs/MAX7219-Dot-Matrix-90-Degree-Demo
Demo Video https://youtu.be/r3AHPEftqeU