OLED Display Case

thingiverse

This is a perfect opportunity for the "0.96" I2C IIC SPI Serial 128X64 White OLED LCD LED Display Module". You can easily find this display on Adafruit or eBay by searching for the description above. Note that there's another OLCD display available, but it's color and won't fit in this case. The case does come with a back, however, it lacks any mechanism to secure it in place, so you'll need to use tape or glue to keep it attached.