Word clocks are nothing new. We have covered a bunch of them here in the past. This Arduino Nano Word Clock Kit is worth a look for those of you interested in building your own clock. It measures 6.3″ X 6.3″ X 1.4″ and comes with firmware already uploaded to the Arduino Nano. You will have to do a bit of soldering and gluing.
The kit has almost everything you need to get started. Just bring your own USB power supply and CR2025 battery.