The site I built for One Match Fire features a music video I wrote and produced at a rock show I organized. It also features a custom interactive countdown timer for our next show, according to the Bandsintown API.
The coolest feature is the way I hacked the output for the API to bandsintown. the Bandsintown API lists shows and events with their location and time. I used a javascript counter timer that always pulls the next upcoming show, and counts down the days, hours, and minutes.