The Adafruit MagTag is perfect for reminders of upcoming events. This includes space launches. and in this project, launches by SpaceX. SpaceX is launching numerous interesting missions including manned to the ISS, cargo for the ISS, Starlink satellites, and more.
The MagTag fetches launch JSON data via WiFi and displays it on the beautiful eInk display. The mission, when the launch is occurring and a description of the mission (if available) and formatted onto the display.
Place the MagTag on a desk or on a refrigerator - never miss another launch again.
The current version initiates a deep sleep for 24 hours between refreshes, which should make a fully charged battery last a long time. You will still have to charge it up via a USB cable periodically - if it doesn't update, charge it.