I always liked ePaper displays so I went out of my way to buy one and a Pi to run it in order to make an ePaper "tablet" or something like a "Digital Sticky Note". That hasn't happened yet so to practice I just built a simple ePaper day counter to count down the days for certain life events!
So far I have a functioning display and a "temporary" case made of the original foam the screen came in and some Q-Tips to hold the Pi in place.