Making a Mask with an E-Ink Banner

We wear masks out in public so often it occurred to me we should be able to dynamically customize them to suit our moods and maybe even sell advertising space! Masks also hide a good part of our facial expressions and so I wondered if I couldn't create a portion of a mask that lets people know how we're doing underneath. So I prototyped a wearable mask with a flexible e-ink display that can dynamically show content.