Meet Pins Collective: a digital pin that pairs with your iOS or Android device to let you wear your favorite artworks on your chest. The companion app not only lets you use the work of others, it also allows you to create your own designs with custom text, background patterns, and colors.
Pins Collective has a round shaped display. The battery lasts 2.5 hours for moving picture and 74 hours for still images. Yet another interesting Kickstarter project.