The Raspberry Pi Zero's best feature is its size, and DIYer Frederick Vandenbosch took advantage of that by using the Zero as a tiny little information display. This video shows how it's done.
The idea here is to simply create a little information display powered by the Zero that will display just about whatever you want. Using an OLED screen and a 3D printed case, Vandenbosch shows you how to display a wide variety of potential info, but you can edit it with just about whatever you want. Head over to Vendenbosch's site for the guide.
Raspberry Pi Zero Internet Connected Information Display [Frederick Vandenbosch]